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58b0aca735
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9377 Commits

Author SHA1 Message Date
Thomas Zimmermann
58b0aca735 fbdev: p9100: Remove trailing whitespaces 
Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-05-11 15:22:16 +02:00
Thomas Zimmermann
8c13c9de80 fbdev: maxinefb: Remove trailing whitespaces 
Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-05-11 15:22:16 +02:00
Thomas Zimmermann
41aaa2ecfc fbdev: macfb: Remove trailing whitespaces 
Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-05-11 15:22:16 +02:00
Thomas Zimmermann
4311776fd8 fbdev: hpfb: Remove trailing whitespaces 
Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-05-11 15:22:16 +02:00
Thomas Zimmermann
f15d296317 fbdev: hgafb: Remove trailing whitespaces 
Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-05-11 15:22:16 +02:00
Thomas Zimmermann
353e444119 fbdev: g364fb: Remove trailing whitespaces 
Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-05-11 15:22:15 +02:00
Thomas Zimmermann
56fd955835 fbdev: controlfb: Remove trailing whitespaces 
Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-05-11 15:22:15 +02:00
Thomas Zimmermann
ca047de0e0 fbdev: cg14: Remove trailing whitespaces 
Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-05-11 15:22:15 +02:00
Thomas Zimmermann
486357bbda fbdev: atmel_lcdfb: Remove trailing whitespaces 
Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-05-11 15:22:15 +02:00
Thomas Zimmermann
3f6cb84839 fbdev: 68328fb: Remove trailing whitespaces 
Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-05-11 15:22:15 +02:00
Zongjie Li
5a6bef7342 fbdev: arcfb: Fix error handling in arcfb_probe() 
Smatch complains that:
arcfb_probe() warn: 'irq' from request_irq() not released on lines: 587.

Fix error handling in the arcfb_probe() function. If IO addresses are
not provided or framebuffer registration fails, the code will jump to
the err_addr or err_register_fb label to release resources.
If IRQ request fails, previously allocated resources will be freed.

Fixes: 1154ea7dcd ("[PATCH] Framebuffer driver for Arc LCD board")
Signed-off-by: Zongjie Li <u202112089@hust.edu.cn>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-05-11 15:22:15 +02:00
Linus Torvalds
d7b3ffe2d7 - Fix-ups 
- Add / improve Device Tree bindings
    - Convert (int) .remove functions to (void) .remove_new
    - Rid 'defined but not used' warnings
    - Remove ineffective casts and pointer stubs
    - Use specifically crafted API for testing DT property presence
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Merge tag 'backlight-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight updates from Lee Jones:
 "Fix-ups:
   - Add / improve Device Tree bindings
   - Convert (int) .remove functions to (void) .remove_new
   - Rid 'defined but not used' warnings
   - Remove ineffective casts and pointer stubs
   - Use specifically crafted API for testing DT property presence"

* tag 'backlight-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  backlight: as3711: Use of_property_read_bool() for boolean properties
  backlight: hx8357: Use of_property_present() for testing DT property presence
  backlight: arcxcnn_bl: Drop of_match_ptr for ID table
  backlight: lp855x: Mark OF related data as maybe unused
  backlight: sky81452-backlight: Convert to platform remove callback returning void
  backlight: rt4831-backlight: Convert to platform remove callback returning void
  backlight: qcom-wled: Convert to platform remove callback returning void
  backlight: pwm_bl: Convert to platform remove callback returning void
  backlight: mt6370-backlight: Convert to platform remove callback returning void
  backlight: lp8788_bl: Convert to platform remove callback returning void
  backlight: lm3533_bl: Convert to platform remove callback returning void
  backlight: led_bl: Convert to platform remove callback returning void
  backlight: hp680_bl: Convert to platform remove callback returning void
  backlight: da9052_bl: Convert to platform remove callback returning void
  backlight: cr_bllcd: Convert to platform remove callback returning void
  backlight: adp5520_bl: Convert to platform remove callback returning void
  backlight: aat2870_bl: Convert to platform remove callback returning void
  backlight: qcom-wled: Add PMI8950 compatible
 2023-05-02 10:46:11 -07:00
Linus Torvalds
7fa8a8ee94 - Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of 
switching from a user process to a kernel thread.
 
 - More folio conversions from Kefeng Wang, Zhang Peng and Pankaj Raghav.
 
 - zsmalloc performance improvements from Sergey Senozhatsky.
 
 - Yue Zhao has found and fixed some data race issues around the
   alteration of memcg userspace tunables.
 
 - VFS rationalizations from Christoph Hellwig:
 
   - removal of most of the callers of write_one_page().
 
   - make __filemap_get_folio()'s return value more useful
 
 - Luis Chamberlain has changed tmpfs so it no longer requires swap
   backing.  Use `mount -o noswap'.
 
 - Qi Zheng has made the slab shrinkers operate locklessly, providing
   some scalability benefits.
 
 - Keith Busch has improved dmapool's performance, making part of its
   operations O(1) rather than O(n).
 
 - Peter Xu adds the UFFD_FEATURE_WP_UNPOPULATED feature to userfaultd,
   permitting userspace to wr-protect anon memory unpopulated ptes.
 
 - Kirill Shutemov has changed MAX_ORDER's meaning to be inclusive rather
   than exclusive, and has fixed a bunch of errors which were caused by its
   unintuitive meaning.
 
 - Axel Rasmussen give userfaultfd the UFFDIO_CONTINUE_MODE_WP feature,
   which causes minor faults to install a write-protected pte.
 
 - Vlastimil Babka has done some maintenance work on vma_merge():
   cleanups to the kernel code and improvements to our userspace test
   harness.
 
 - Cleanups to do_fault_around() by Lorenzo Stoakes.
 
 - Mike Rapoport has moved a lot of initialization code out of various
   mm/ files and into mm/mm_init.c.
 
 - Lorenzo Stoakes removd vmf_insert_mixed_prot(), which was added for
   DRM, but DRM doesn't use it any more.
 
 - Lorenzo has also coverted read_kcore() and vread() to use iterators
   and has thereby removed the use of bounce buffers in some cases.
 
 - Lorenzo has also contributed further cleanups of vma_merge().
 
 - Chaitanya Prakash provides some fixes to the mmap selftesting code.
 
 - Matthew Wilcox changes xfs and afs so they no longer take sleeping
   locks in ->map_page(), a step towards RCUification of pagefaults.
 
 - Suren Baghdasaryan has improved mmap_lock scalability by switching to
   per-VMA locking.
 
 - Frederic Weisbecker has reworked the percpu cache draining so that it
   no longer causes latency glitches on cpu isolated workloads.
 
 - Mike Rapoport cleans up and corrects the ARCH_FORCE_MAX_ORDER Kconfig
   logic.
 
 - Liu Shixin has changed zswap's initialization so we no longer waste a
   chunk of memory if zswap is not being used.
 
 - Yosry Ahmed has improved the performance of memcg statistics flushing.
 
 - David Stevens has fixed several issues involving khugepaged,
   userfaultfd and shmem.
 
 - Christoph Hellwig has provided some cleanup work to zram's IO-related
   code paths.
 
 - David Hildenbrand has fixed up some issues in the selftest code's
   testing of our pte state changing.
 
 - Pankaj Raghav has made page_endio() unneeded and has removed it.
 
 - Peter Xu contributed some rationalizations of the userfaultfd
   selftests.
 
 - Yosry Ahmed has fixed an issue around memcg's page recalim accounting.
 
 - Chaitanya Prakash has fixed some arm-related issues in the
   selftests/mm code.
 
 - Longlong Xia has improved the way in which KSM handles hwpoisoned
   pages.
 
 - Peter Xu fixes a few issues with uffd-wp at fork() time.
 
 - Stefan Roesch has changed KSM so that it may now be used on a
   per-process and per-cgroup basis.
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Merge tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
   switching from a user process to a kernel thread.

 - More folio conversions from Kefeng Wang, Zhang Peng and Pankaj
   Raghav.

 - zsmalloc performance improvements from Sergey Senozhatsky.

 - Yue Zhao has found and fixed some data race issues around the
   alteration of memcg userspace tunables.

 - VFS rationalizations from Christoph Hellwig:
     - removal of most of the callers of write_one_page()
     - make __filemap_get_folio()'s return value more useful

 - Luis Chamberlain has changed tmpfs so it no longer requires swap
   backing. Use `mount -o noswap'.

 - Qi Zheng has made the slab shrinkers operate locklessly, providing
   some scalability benefits.

 - Keith Busch has improved dmapool's performance, making part of its
   operations O(1) rather than O(n).

 - Peter Xu adds the UFFD_FEATURE_WP_UNPOPULATED feature to userfaultd,
   permitting userspace to wr-protect anon memory unpopulated ptes.

 - Kirill Shutemov has changed MAX_ORDER's meaning to be inclusive
   rather than exclusive, and has fixed a bunch of errors which were
   caused by its unintuitive meaning.

 - Axel Rasmussen give userfaultfd the UFFDIO_CONTINUE_MODE_WP feature,
   which causes minor faults to install a write-protected pte.

 - Vlastimil Babka has done some maintenance work on vma_merge():
   cleanups to the kernel code and improvements to our userspace test
   harness.

 - Cleanups to do_fault_around() by Lorenzo Stoakes.

 - Mike Rapoport has moved a lot of initialization code out of various
   mm/ files and into mm/mm_init.c.

 - Lorenzo Stoakes removd vmf_insert_mixed_prot(), which was added for
   DRM, but DRM doesn't use it any more.

 - Lorenzo has also coverted read_kcore() and vread() to use iterators
   and has thereby removed the use of bounce buffers in some cases.

 - Lorenzo has also contributed further cleanups of vma_merge().

 - Chaitanya Prakash provides some fixes to the mmap selftesting code.

 - Matthew Wilcox changes xfs and afs so they no longer take sleeping
   locks in ->map_page(), a step towards RCUification of pagefaults.

 - Suren Baghdasaryan has improved mmap_lock scalability by switching to
   per-VMA locking.

 - Frederic Weisbecker has reworked the percpu cache draining so that it
   no longer causes latency glitches on cpu isolated workloads.

 - Mike Rapoport cleans up and corrects the ARCH_FORCE_MAX_ORDER Kconfig
   logic.

 - Liu Shixin has changed zswap's initialization so we no longer waste a
   chunk of memory if zswap is not being used.

 - Yosry Ahmed has improved the performance of memcg statistics
   flushing.

 - David Stevens has fixed several issues involving khugepaged,
   userfaultfd and shmem.

 - Christoph Hellwig has provided some cleanup work to zram's IO-related
   code paths.

 - David Hildenbrand has fixed up some issues in the selftest code's
   testing of our pte state changing.

 - Pankaj Raghav has made page_endio() unneeded and has removed it.

 - Peter Xu contributed some rationalizations of the userfaultfd
   selftests.

 - Yosry Ahmed has fixed an issue around memcg's page recalim
   accounting.

 - Chaitanya Prakash has fixed some arm-related issues in the
   selftests/mm code.

 - Longlong Xia has improved the way in which KSM handles hwpoisoned
   pages.

 - Peter Xu fixes a few issues with uffd-wp at fork() time.

 - Stefan Roesch has changed KSM so that it may now be used on a
   per-process and per-cgroup basis.

* tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (369 commits)
  mm,unmap: avoid flushing TLB in batch if PTE is inaccessible
  shmem: restrict noswap option to initial user namespace
  mm/khugepaged: fix conflicting mods to collapse_file()
  sparse: remove unnecessary 0 values from rc
  mm: move 'mmap_min_addr' logic from callers into vm_unmapped_area()
  hugetlb: pte_alloc_huge() to replace huge pte_alloc_map()
  maple_tree: fix allocation in mas_sparse_area()
  mm: do not increment pgfault stats when page fault handler retries
  zsmalloc: allow only one active pool compaction context
  selftests/mm: add new selftests for KSM
  mm: add new KSM process and sysfs knobs
  mm: add new api to enable ksm per process
  mm: shrinkers: fix debugfs file permissions
  mm: don't check VMA write permissions if the PTE/PMD indicates write permissions
  migrate_pages_batch: fix statistics for longterm pin retry
  userfaultfd: use helper function range_in_vma()
  lib/show_mem.c: use for_each_populated_zone() simplify code
  mm: correct arg in reclaim_pages()/reclaim_clean_pages_from_list()
  fs/buffer: convert create_page_buffers to folio_create_buffers
  fs/buffer: add folio_create_empty_buffers helper
  ...
 2023-04-27 19:42:02 -07:00
Linus Torvalds
b6a7828502 modules-6.4-rc1 
The summary of the changes for this pull requests is:
 
  * Song Liu's new struct module_memory replacement
  * Nick Alcock's MODULE_LICENSE() removal for non-modules
  * My cleanups and enhancements to reduce the areas where we vmalloc
    module memory for duplicates, and the respective debug code which
    proves the remaining vmalloc pressure comes from userspace.
 
 Most of the changes have been in linux-next for quite some time except
 the minor fixes I made to check if a module was already loaded
 prior to allocating the final module memory with vmalloc and the
 respective debug code it introduces to help clarify the issue. Although
 the functional change is small it is rather safe as it can only *help*
 reduce vmalloc space for duplicates and is confirmed to fix a bootup
 issue with over 400 CPUs with KASAN enabled. I don't expect stable
 kernels to pick up that fix as the cleanups would have also had to have
 been picked up. Folks on larger CPU systems with modules will want to
 just upgrade if vmalloc space has been an issue on bootup.
 
 Given the size of this request, here's some more elaborate details
 on this pull request.
 
 The functional change change in this pull request is the very first
 patch from Song Liu which replaces the struct module_layout with a new
 struct module memory. The old data structure tried to put together all
 types of supported module memory types in one data structure, the new
 one abstracts the differences in memory types in a module to allow each
 one to provide their own set of details. This paves the way in the
 future so we can deal with them in a cleaner way. If you look at changes
 they also provide a nice cleanup of how we handle these different memory
 areas in a module. This change has been in linux-next since before the
 merge window opened for v6.3 so to provide more than a full kernel cycle
 of testing. It's a good thing as quite a bit of fixes have been found
 for it.
 
 Jason Baron then made dynamic debug a first class citizen module user by
 using module notifier callbacks to allocate / remove module specific
 dynamic debug information.
 
 Nick Alcock has done quite a bit of work cross-tree to remove module
 license tags from things which cannot possibly be module at my request
 so to:
 
   a) help him with his longer term tooling goals which require a
      deterministic evaluation if a piece a symbol code could ever be
      part of a module or not. But quite recently it is has been made
      clear that tooling is not the only one that would benefit.
      Disambiguating symbols also helps efforts such as live patching,
      kprobes and BPF, but for other reasons and R&D on this area
      is active with no clear solution in sight.
 
   b) help us inch closer to the now generally accepted long term goal
      of automating all the MODULE_LICENSE() tags from SPDX license tags
 
 In so far as a) is concerned, although module license tags are a no-op
 for non-modules, tools which would want create a mapping of possible
 modules can only rely on the module license tag after the commit
 8b41fc4454 ("kbuild: create modules.builtin without Makefile.modbuiltin
 or tristate.conf").  Nick has been working on this *for years* and
 AFAICT I was the only one to suggest two alternatives to this approach
 for tooling. The complexity in one of my suggested approaches lies in
 that we'd need a possible-obj-m and a could-be-module which would check
 if the object being built is part of any kconfig build which could ever
 lead to it being part of a module, and if so define a new define
 -DPOSSIBLE_MODULE [0]. A more obvious yet theoretical approach I've
 suggested would be to have a tristate in kconfig imply the same new
 -DPOSSIBLE_MODULE as well but that means getting kconfig symbol names
 mapping to modules always, and I don't think that's the case today. I am
 not aware of Nick or anyone exploring either of these options. Quite
 recently Josh Poimboeuf has pointed out that live patching, kprobes and
 BPF would benefit from resolving some part of the disambiguation as
 well but for other reasons. The function granularity KASLR (fgkaslr)
 patches were mentioned but Joe Lawrence has clarified this effort has
 been dropped with no clear solution in sight [1].
 
 In the meantime removing module license tags from code which could never
 be modules is welcomed for both objectives mentioned above. Some
 developers have also welcomed these changes as it has helped clarify
 when a module was never possible and they forgot to clean this up,
 and so you'll see quite a bit of Nick's patches in other pull
 requests for this merge window. I just picked up the stragglers after
 rc3. LWN has good coverage on the motivation behind this work [2] and
 the typical cross-tree issues he ran into along the way. The only
 concrete blocker issue he ran into was that we should not remove the
 MODULE_LICENSE() tags from files which have no SPDX tags yet, even if
 they can never be modules. Nick ended up giving up on his efforts due
 to having to do this vetting and backlash he ran into from folks who
 really did *not understand* the core of the issue nor were providing
 any alternative / guidance. I've gone through his changes and dropped
 the patches which dropped the module license tags where an SPDX
 license tag was missing, it only consisted of 11 drivers.  To see
 if a pull request deals with a file which lacks SPDX tags you
 can just use:
 
   ./scripts/spdxcheck.py -f \
 	$(git diff --name-only commid-id | xargs echo)
 
 You'll see a core module file in this pull request for the above,
 but that's not related to his changes. WE just need to add the SPDX
 license tag for the kernel/module/kmod.c file in the future but
 it demonstrates the effectiveness of the script.
 
 Most of Nick's changes were spread out through different trees,
 and I just picked up the slack after rc3 for the last kernel was out.
 Those changes have been in linux-next for over two weeks.
 
 The cleanups, debug code I added and final fix I added for modules
 were motivated by David Hildenbrand's report of boot failing on
 a systems with over 400 CPUs when KASAN was enabled due to running
 out of virtual memory space. Although the functional change only
 consists of 3 lines in the patch "module: avoid allocation if module is
 already present and ready", proving that this was the best we can
 do on the modules side took quite a bit of effort and new debug code.
 
 The initial cleanups I did on the modules side of things has been
 in linux-next since around rc3 of the last kernel, the actual final
 fix for and debug code however have only been in linux-next for about a
 week or so but I think it is worth getting that code in for this merge
 window as it does help fix / prove / evaluate the issues reported
 with larger number of CPUs. Userspace is not yet fixed as it is taking
 a bit of time for folks to understand the crux of the issue and find a
 proper resolution. Worst come to worst, I have a kludge-of-concept [3]
 of how to make kernel_read*() calls for modules unique / converge them,
 but I'm currently inclined to just see if userspace can fix this
 instead.
 
 [0] https://lore.kernel.org/all/Y/kXDqW+7d71C4wz@bombadil.infradead.org/
 [1] https://lkml.kernel.org/r/025f2151-ce7c-5630-9b90-98742c97ac65@redhat.com
 [2] https://lwn.net/Articles/927569/
 [3] https://lkml.kernel.org/r/20230414052840.1994456-3-mcgrof@kernel.org
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Merge tag 'modules-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux

Pull module updates from Luis Chamberlain:
 "The summary of the changes for this pull requests is:

   - Song Liu's new struct module_memory replacement

   - Nick Alcock's MODULE_LICENSE() removal for non-modules

   - My cleanups and enhancements to reduce the areas where we vmalloc
     module memory for duplicates, and the respective debug code which
     proves the remaining vmalloc pressure comes from userspace.

  Most of the changes have been in linux-next for quite some time except
  the minor fixes I made to check if a module was already loaded prior
  to allocating the final module memory with vmalloc and the respective
  debug code it introduces to help clarify the issue. Although the
  functional change is small it is rather safe as it can only *help*
  reduce vmalloc space for duplicates and is confirmed to fix a bootup
  issue with over 400 CPUs with KASAN enabled. I don't expect stable
  kernels to pick up that fix as the cleanups would have also had to
  have been picked up. Folks on larger CPU systems with modules will
  want to just upgrade if vmalloc space has been an issue on bootup.

  Given the size of this request, here's some more elaborate details:

  The functional change change in this pull request is the very first
  patch from Song Liu which replaces the 'struct module_layout' with a
  new 'struct module_memory'. The old data structure tried to put
  together all types of supported module memory types in one data
  structure, the new one abstracts the differences in memory types in a
  module to allow each one to provide their own set of details. This
  paves the way in the future so we can deal with them in a cleaner way.
  If you look at changes they also provide a nice cleanup of how we
  handle these different memory areas in a module. This change has been
  in linux-next since before the merge window opened for v6.3 so to
  provide more than a full kernel cycle of testing. It's a good thing as
  quite a bit of fixes have been found for it.

  Jason Baron then made dynamic debug a first class citizen module user
  by using module notifier callbacks to allocate / remove module
  specific dynamic debug information.

  Nick Alcock has done quite a bit of work cross-tree to remove module
  license tags from things which cannot possibly be module at my request
  so to:

   a) help him with his longer term tooling goals which require a
      deterministic evaluation if a piece a symbol code could ever be
      part of a module or not. But quite recently it is has been made
      clear that tooling is not the only one that would benefit.
      Disambiguating symbols also helps efforts such as live patching,
      kprobes and BPF, but for other reasons and R&D on this area is
      active with no clear solution in sight.

   b) help us inch closer to the now generally accepted long term goal
      of automating all the MODULE_LICENSE() tags from SPDX license tags

  In so far as a) is concerned, although module license tags are a no-op
  for non-modules, tools which would want create a mapping of possible
  modules can only rely on the module license tag after the commit
  8b41fc4454 ("kbuild: create modules.builtin without
  Makefile.modbuiltin or tristate.conf").

  Nick has been working on this *for years* and AFAICT I was the only
  one to suggest two alternatives to this approach for tooling. The
  complexity in one of my suggested approaches lies in that we'd need a
  possible-obj-m and a could-be-module which would check if the object
  being built is part of any kconfig build which could ever lead to it
  being part of a module, and if so define a new define
  -DPOSSIBLE_MODULE [0].

  A more obvious yet theoretical approach I've suggested would be to
  have a tristate in kconfig imply the same new -DPOSSIBLE_MODULE as
  well but that means getting kconfig symbol names mapping to modules
  always, and I don't think that's the case today. I am not aware of
  Nick or anyone exploring either of these options. Quite recently Josh
  Poimboeuf has pointed out that live patching, kprobes and BPF would
  benefit from resolving some part of the disambiguation as well but for
  other reasons. The function granularity KASLR (fgkaslr) patches were
  mentioned but Joe Lawrence has clarified this effort has been dropped
  with no clear solution in sight [1].

  In the meantime removing module license tags from code which could
  never be modules is welcomed for both objectives mentioned above. Some
  developers have also welcomed these changes as it has helped clarify
  when a module was never possible and they forgot to clean this up, and
  so you'll see quite a bit of Nick's patches in other pull requests for
  this merge window. I just picked up the stragglers after rc3. LWN has
  good coverage on the motivation behind this work [2] and the typical
  cross-tree issues he ran into along the way. The only concrete blocker
  issue he ran into was that we should not remove the MODULE_LICENSE()
  tags from files which have no SPDX tags yet, even if they can never be
  modules. Nick ended up giving up on his efforts due to having to do
  this vetting and backlash he ran into from folks who really did *not
  understand* the core of the issue nor were providing any alternative /
  guidance. I've gone through his changes and dropped the patches which
  dropped the module license tags where an SPDX license tag was missing,
  it only consisted of 11 drivers. To see if a pull request deals with a
  file which lacks SPDX tags you can just use:

    ./scripts/spdxcheck.py -f \
	$(git diff --name-only commid-id | xargs echo)

  You'll see a core module file in this pull request for the above, but
  that's not related to his changes. WE just need to add the SPDX
  license tag for the kernel/module/kmod.c file in the future but it
  demonstrates the effectiveness of the script.

  Most of Nick's changes were spread out through different trees, and I
  just picked up the slack after rc3 for the last kernel was out. Those
  changes have been in linux-next for over two weeks.

  The cleanups, debug code I added and final fix I added for modules
  were motivated by David Hildenbrand's report of boot failing on a
  systems with over 400 CPUs when KASAN was enabled due to running out
  of virtual memory space. Although the functional change only consists
  of 3 lines in the patch "module: avoid allocation if module is already
  present and ready", proving that this was the best we can do on the
  modules side took quite a bit of effort and new debug code.

  The initial cleanups I did on the modules side of things has been in
  linux-next since around rc3 of the last kernel, the actual final fix
  for and debug code however have only been in linux-next for about a
  week or so but I think it is worth getting that code in for this merge
  window as it does help fix / prove / evaluate the issues reported with
  larger number of CPUs. Userspace is not yet fixed as it is taking a
  bit of time for folks to understand the crux of the issue and find a
  proper resolution. Worst come to worst, I have a kludge-of-concept [3]
  of how to make kernel_read*() calls for modules unique / converge
  them, but I'm currently inclined to just see if userspace can fix this
  instead"

Link: https://lore.kernel.org/all/Y/kXDqW+7d71C4wz@bombadil.infradead.org/ [0]
Link: https://lkml.kernel.org/r/025f2151-ce7c-5630-9b90-98742c97ac65@redhat.com [1]
Link: https://lwn.net/Articles/927569/ [2]
Link: https://lkml.kernel.org/r/20230414052840.1994456-3-mcgrof@kernel.org [3]

* tag 'modules-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux: (121 commits)
  module: add debugging auto-load duplicate module support
  module: stats: fix invalid_mod_bytes typo
  module: remove use of uninitialized variable len
  module: fix building stats for 32-bit targets
  module: stats: include uapi/linux/module.h
  module: avoid allocation if module is already present and ready
  module: add debug stats to help identify memory pressure
  module: extract patient module check into helper
  modules/kmod: replace implementation with a semaphore
  Change DEFINE_SEMAPHORE() to take a number argument
  module: fix kmemleak annotations for non init ELF sections
  module: Ignore L0 and rename is_arm_mapping_symbol()
  module: Move is_arm_mapping_symbol() to module_symbol.h
  module: Sync code of is_arm_mapping_symbol()
  scripts/gdb: use mem instead of core_layout to get the module address
  interconnect: remove module-related code
  interconnect: remove MODULE_LICENSE in non-modules
  zswap: remove MODULE_LICENSE in non-modules
  zpool: remove MODULE_LICENSE in non-modules
  x86/mm/dump_pagetables: remove MODULE_LICENSE in non-modules
  ...
 2023-04-27 16:36:55 -07:00
Linus Torvalds
556eb8b791 Driver core changes for 6.4-rc1 
Here is the large set of driver core changes for 6.4-rc1.
 
 Once again, a busy development cycle, with lots of changes happening in
 the driver core in the quest to be able to move "struct bus" and "struct
 class" into read-only memory, a task now complete with these changes.
 
 This will make the future rust interactions with the driver core more
 "provably correct" as well as providing more obvious lifetime rules for
 all busses and classes in the kernel.
 
 The changes required for this did touch many individual classes and
 busses as many callbacks were changed to take const * parameters
 instead.  All of these changes have been submitted to the various
 subsystem maintainers, giving them plenty of time to review, and most of
 them actually did so.
 
 Other than those changes, included in here are a small set of other
 things:
   - kobject logging improvements
   - cacheinfo improvements and updates
   - obligatory fw_devlink updates and fixes
   - documentation updates
   - device property cleanups and const * changes
   - firwmare loader dependency fixes.
 
 All of these have been in linux-next for a while with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the large set of driver core changes for 6.4-rc1.

  Once again, a busy development cycle, with lots of changes happening
  in the driver core in the quest to be able to move "struct bus" and
  "struct class" into read-only memory, a task now complete with these
  changes.

  This will make the future rust interactions with the driver core more
  "provably correct" as well as providing more obvious lifetime rules
  for all busses and classes in the kernel.

  The changes required for this did touch many individual classes and
  busses as many callbacks were changed to take const * parameters
  instead. All of these changes have been submitted to the various
  subsystem maintainers, giving them plenty of time to review, and most
  of them actually did so.

  Other than those changes, included in here are a small set of other
  things:

   - kobject logging improvements

   - cacheinfo improvements and updates

   - obligatory fw_devlink updates and fixes

   - documentation updates

   - device property cleanups and const * changes

   - firwmare loader dependency fixes.

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (120 commits)
  device property: make device_property functions take const device *
  driver core: update comments in device_rename()
  driver core: Don't require dynamic_debug for initcall_debug probe timing
  firmware_loader: rework crypto dependencies
  firmware_loader: Strip off \n from customized path
  zram: fix up permission for the hot_add sysfs file
  cacheinfo: Add use_arch[|_cache]_info field/function
  arch_topology: Remove early cacheinfo error message if -ENOENT
  cacheinfo: Check cache properties are present in DT
  cacheinfo: Check sib_leaf in cache_leaves_are_shared()
  cacheinfo: Allow early level detection when DT/ACPI info is missing/broken
  cacheinfo: Add arm64 early level initializer implementation
  cacheinfo: Add arch specific early level initializer
  tty: make tty_class a static const structure
  driver core: class: remove struct class_interface * from callbacks
  driver core: class: mark the struct class in struct class_interface constant
  driver core: class: make class_register() take a const *
  driver core: class: mark class_release() as taking a const *
  driver core: remove incorrect comment for device_create*
  MIPS: vpe-cmp: remove module owner pointer from struct class usage.
  ...
 2023-04-27 11:53:57 -07:00
Linus Torvalds
725a345b2e fbdev updates for kernel 6.4-rc1: 
- vt_buffer.h: Fix build on alpha (Randy Dunlap)
 - mmp: Clock handling fix (Christophe JAILLET)
 - 68328fb, ps3fb, vfb: Init .owner field of struct fb_ops (Thomas Zimmermann)
 - fbdev: cg14: Convert to platform remove callback returning void
 - Preparation patches to convert drivers to return void in .remove() callback
   (Uwe Kleine-König)
 - Drop Paul Mackerras as rage128 maintainer
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Merge tag 'fbdev-for-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Pull fbdev updates from Helge Deller:
 "Nothing really exiting in here.

  The majority of lines changed is due to Uwe's preparation patches to
  change the return value of the .remove() callback to void.

  Summary:

   - vt_buffer.h: Fix build on alpha (Randy Dunlap)

   - mmp: Clock handling fix (Christophe JAILLET)

   - 68328fb, ps3fb, vfb: Init .owner field of struct fb_ops (Thomas
     Zimmermann)

   - fbdev: cg14: Convert to platform remove callback returning void

   - Preparation patches to convert drivers to return void in .remove()
     callback (Uwe Kleine-König)

   - Drop Paul Mackerras as rage128 maintainer"

* tag 'fbdev-for-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: (51 commits)
  MAINTAINERS: Remove rage128 framebuffer driver maintainer
  fbdev: vfb: Init owner field of struct fb_ops
  fbdev: ps3fb: Init owner field of struct fb_ops
  fbdev: 68328fb: Init owner field of struct fb_ops
  fbdev: mmp: Fix deferred clk handling in mmphw_probe()
  linux/vt_buffer.h: allow either builtin or modular for macros
  fbdev: xilinxfb: Convert to platform remove callback returning void
  fbdev: wmt_ge_rops: Convert to platform remove callback returning void
  fbdev: wm8505fb: Convert to platform remove callback returning void
  fbdev: vt8500lcdfb: Convert to platform remove callback returning void
  fbdev: via: Convert to platform remove callback returning void
  fbdev: vga16fb: Convert to platform remove callback returning void
  fbdev: vfb: Convert to platform remove callback returning void
  fbdev: vesafb: Convert to platform remove callback returning void
  fbdev: uvesafb: Convert to platform remove callback returning void
  fbdev: tcx: Convert to platform remove callback returning void
  fbdev: sm501fb: Convert to platform remove callback returning void
  fbdev: simplefb: Convert to platform remove callback returning void
  fbdev: sh_mobile_lcdcfb: Convert to platform remove callback returning void
  fbdev: sh7760fb: Convert to platform remove callback returning void
  ...
 2023-04-27 11:19:51 -07:00
Linus Torvalds
088e0c1885 platform-drivers-x86 for v6.4-1 
Highlights:
  -  AMD PMC and PMF drivers:
     - Numerous bugfixes
  -  Intel Speed Select Technology (ISST):
     - TPMI (Topology Aware Register and PM Capsule Interface) support
       for ISST support on upcoming processor models
     - Various other improvements / new hw support
     - tools/intel-speed-select: TPMI support + other improvements
  -  Intel In Field Scan (IFS):
     - Add Array Bist test support
  -  New drivers:
     - intel_bytcrc_pwrsrc Crystal Cove PMIC pwrsrc / reset-reason driver
     - lenovo-ymc Yoga Mode Control driver for reporting SW_TABLET_MODE
     - msi-ec Driver for MSI laptop EC features like battery charging limits
  -  apple-gmux:
     - Support for new MMIO based models (T2 Macs)
     - Honor acpi_backlight= auto-detect-code + kernel cmdline option
       to switch between gmux and apple_bl backlight drivers and remove
       own custom handling for this
  -  x86-android-tablets: Refactor / cleanup + new hw support
  -  Miscellaneous other cleanups / fixes
 
 The following is an automated git shortlog grouped by driver:
 
 Add driver for Yoga Tablet Mode switch:
  - Add driver for Yoga Tablet Mode switch
 
 Add intel_bytcrc_pwrsrc driver:
  - Add intel_bytcrc_pwrsrc driver
 
 Add new msi-ec driver:
  - Add new msi-ec driver
 
 Documentation/ABI:
  -  Update IFS ABI doc
 
 ISST:
  -  unlock on error path in tpmi_sst_init()
  -  Add suspend/resume callbacks
  -  Add SST-TF support via TPMI
  -  Add SST-BF support via TPMI
  -  Add SST-PP support via TPMI
  -  Add SST-CP support via TPMI
  -  Parse SST MMIO and update instance
  -  Enumerate TPMI SST and create framework
  -  Add support for MSR 0x54
  -  Add API version of the target
  -  Add IOCTL default callback
  -  Add TPMI target
 
 Merge remote-tracking branch 'intel-speed-select/intel-sst' into review-hans:
  - Merge remote-tracking branch 'intel-speed-select/intel-sst' into review-hans
 
 Merge tag 'ib-pdx86-backlight-6.4' into review-hans:
  - Merge tag 'ib-pdx86-backlight-6.4' into review-hans
 
 Move ideapad ACPI helpers to a new header:
  - Move ideapad ACPI helpers to a new header
 
 acer-wmi:
  -  Convert to platform remove callback returning void
 
 acerhdf:
  -  Remove unneeded semicolon
 
 adv_swbutton:
  -  Convert to platform remove callback returning void
 
 amilo-rfkill:
  -  Convert to platform remove callback returning void
 
 apple-gmux:
  -  Fix iomem_base __iomem annotation
  -  return -EFAULT if copy fails
  -  Update apple_gmux_detect documentation
  -  Add acpi_video_get_backlight_type() check
  -  add debugfs interface
  -  support MMIO gmux on T2 Macs
  -  refactor gmux types
  -  use first bit to check switch state
 
 backlight:
  -  apple_bl: Use acpi_video_get_backlight_type()
 
 barco-p50-gpio:
  -  Convert to platform remove callback returning void
 
 classmate:
  -  mark SPI related data as maybe unused
 
 compal-laptop:
  -  Convert to platform remove callback returning void
 
 dell:
  -  dell-smo8800: Convert to platform remove callback returning void
  -  dcdbas: Convert to platform remove callback returning void
 
 dell-laptop:
  -  Register ctl-led for speaker-mute
 
 hp:
  -  tc1100-wmi: Convert to platform remove callback returning void
  -  hp_accel: Convert to platform remove callback returning void
 
 huawei-wmi:
  -  Convert to platform remove callback returning void
 
 ideapad-laptop:
  -  Convert to platform remove callback returning void
 
 intel:
  -  vbtn: Convert to platform remove callback returning void
  -  telemetry: pltdrv: Convert to platform remove callback returning void
  -  pmc: core: Convert to platform remove callback returning void
  -  mrfld_pwrbtn: Convert to platform remove callback returning void
  -  int3472: discrete: Convert to platform remove callback returning void
  -  int1092: intel_sar: Convert to platform remove callback returning void
  -  int0002_vgpio: Convert to platform remove callback returning void
  -  hid: Convert to platform remove callback returning void
  -  chtwc_int33fe: Convert to platform remove callback returning void
  -  chtdc_ti_pwrbtn: Convert to platform remove callback returning void
  -  bxtwc_tmu: Convert to platform remove callback returning void
 
 intel-uncore-freq:
  -  Add client processors
 
 mlxbf-bootctl:
  -  Add sysfs file for BlueField boot fifo
 
 pcengines-apuv2:
  -  Drop platform:pcengines-apuv2 module-alias
 
 platform/mellanox:
  -  add firmware reset support
 
 platform/olpc:
  -  olpc-xo175-ec: Use SPI device ID data to bind device
 
 platform/surface:
  -  aggregator_registry: Add support for tablet-mode switch on Surface Pro 9
  -  aggregator_tabletsw: Add support for Type-Cover posture source
  -  aggregator_tabletsw: Properly handle different posture source IDs
 
 platform/x86/amd:
  -  pmc: provide user message where s0ix is not supported
  -  pmc: Remove __maybe_unused from amd_pmc_suspend_handler()
  -  pmc: Convert to platform remove callback returning void
  -  pmc: Fix memory leak in amd_pmc_stb_debugfs_open_v2()
  -  pmc: Move out of BIOS SMN pair for STB init
  -  pmc: Utilize SMN index 0 for driver probe
  -  pmc: Move idlemask check into `amd_pmc_idlemask_read`
  -  pmc: Don't dump data after resume from s0i3 on picasso
  -  pmc: Hide SMU version and program attributes for Picasso
  -  pmc: Don't try to read SMU version on Picasso
  -  pmf: core: Convert to platform remove callback returning void
  -  hsmp: Convert to platform remove callback returning void
 
 platform/x86/amd/pmf:
  -  Move out of BIOS SMN pair for driver probe
 
 platform/x86/intel:
  -  vsec: Use intel_vsec_dev_release() to simplify init() error cleanup
  -  vsec: Explicitly enable capabilities
 
 platform/x86/intel/ifs:
  -  Update IFS doc
  -  Implement Array BIST test
  -  Sysfs interface for Array BIST
  -  Introduce Array Scan test to IFS
  -  IFS cleanup
  -  Reorganize driver data
  -  Separate ifs_pkg_auth from ifs_data
 
 platform/x86/intel/pmc/mtl:
  -  Put GNA/IPU/VPU devices in D3
 
 platform/x86/intel/pmt:
  -  Ignore uninitialized entries
  -  Add INTEL_PMT module namespace
 
 platform/x86/intel/sdsi:
  -  Change mailbox timeout
 
 samsung-q10:
  -  Convert to platform remove callback returning void
 
 serial-multi-instantiate:
  -  Convert to platform remove callback returning void
 
 sony:
  -  mark SPI related data as maybe unused
 
 think-lmi:
  -  Remove unnecessary casts for attributes
  -  Remove custom kobject sysfs_ops
  -  Properly interpret return value of tlmi_setting
 
 thinkpad_acpi:
  -  Fix Embedded Controller access on X380 Yoga
 
 tools/power/x86/intel-speed-select:
  -  Update version
  -  Change TRL display for Emerald Rapids
  -  Identify Emerald Rapids
  -  Display AMX base frequency
  -  Use cgroup v2 isolation
  -  Add missing free cpuset
  -  Fix clos-max display with TPMI I/F
  -  Add cpu id check
  -  Avoid setting duplicate tdp level
  -  Remove cpu mask display for non-cpu power domain
  -  Hide invalid TRL level
  -  Display fact info for non-cpu power domain
  -  Show level 0 name for new api_version
  -  Prevent cpu clos config for non-cpu power domain
  -  Allow display non-cpu power domain info
  -  Display amx_p1 and cooling_type
  -  Display punit info
  -  Introduce TPMI interface support
  -  Get punit core mapping information
  -  Introduce api_version helper
  -  Support large clos_min/max
  -  Introduce is_debug_enabled()
  -  Allow api_version based platform callbacks
  -  Move send_mbox_cmd to isst-core-mbox.c
  -  Abstract adjust_uncore_freq
  -  Abstract read_pm_config
  -  Abstract clos_associate
  -  Abstract clos_get_assoc_status
  -  Abstract set_clos
  -  Abstract pm_get_clos
  -  Abstract pm_qos_config
  -  Abstract get_clos_information
  -  Abstract get_get_trls
  -  Enhance get_tdp_info
  -  Abstract get_uncore_p0_p1_info
  -  Abstract get_fact_info
  -  Abstract set_pbf_fact_status
  -  Remove isst_get_pbf_info_complete
  -  Abstract get_pbf_info
  -  Abstract set_tdp_level
  -  Abstract get_trl_bucket_info
  -  Abstract get_get_trl
  -  Abstract get_coremask_info
  -  Abstract get_tjmax_info
  -  Move code right before its caller
  -  Abstract get_pwr_info
  -  Abstract get_tdp_info
  -  Abstract get_ctdp_control
  -  Abstract get_config_levels
  -  Abstract is_punit_valid
  -  Introduce isst-core-mbox.c
  -  Always invoke isst_fill_platform_info
  -  Introduce isst_get_disp_freq_multiplier
  -  Move mbox functions to isst-core.c
  -  Improve isst_print_extended_platform_info
  -  Rename for_each_online_package_in_set
  -  Introduce support for multi-punit
  -  Introduce isst_is_punit_valid()
  -  Introduce punit to isst_id
  -  Follow TRL nameing for FACT info
  -  Unify TRL levels
 
 wmi:
  -  Convert to platform remove callback returning void
 
 x86-android-tablets:
  -  Add accelerometer support for Yoga Tablet 2 1050/830 series
  -  Add "yogabook-touch-kbd-digitizer-switch" pdev for Lenovo Yoga Book
  -  Add Wacom digitizer info for Lenovo Yoga Book
  -  Update Yoga Book HiDeep touchscreen comment
  -  Add Lenovo Yoga Book X90F/L data
  -  Share lp855x_platform_data between different models
  -  Use LP8557 in direct mode on both the Yoga 830 and the 1050
  -  Add depends on PMIC_OPREGION
  -  Lenovo Yoga Book match is for YB1-X91 models only
  -  Add LID switch support for Yoga Tablet 2 1050/830 series
  -  Add backlight ctrl for Lenovo Yoga Tab 3 Pro YT3-X90F
  -  Add touchscreen support for Lenovo Yoga Tab 3 Pro YT3-X90F
  -  Add support for the Dolby button on Peaq C1010
  -  Add gpio_keys support to x86_android_tablet_init()
  -  Move remaining tablets to other.c
  -  Move Lenovo tablets to their own file
  -  Move Asus tablets to their own file
  -  Move shared power-supply fw-nodes to a separate file
  -  Move DMI match table into its own dmi.c file
  -  Move core code into new core.c file
  -  Move into its own subdir
  -  Add Acer Iconia One 7 B1-750 data
 
 x86/include/asm/msr-index.h:
  -  Add IFS Array test bits
 
 xo1-rfkill:
  -  Convert to platform remove callback returning void
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Merge tag 'platform-drivers-x86-v6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Hans de Goede:

 -  AMD PMC and PMF drivers:
    - Numerous bugfixes

 -  Intel Speed Select Technology (ISST):
    - TPMI (Topology Aware Register and PM Capsule Interface) support
      for ISST support on upcoming processor models
    - Various other improvements / new hw support
    - tools/intel-speed-select: TPMI support + other improvements

 -  Intel In Field Scan (IFS):
    - Add Array Bist test support

 -  New drivers:
    - intel_bytcrc_pwrsrc Crystal Cove PMIC pwrsrc / reset-reason driver
    - lenovo-ymc Yoga Mode Control driver for reporting SW_TABLET_MODE
    - msi-ec Driver for MSI laptop EC features like battery charging limits

 -  apple-gmux:
    - Support for new MMIO based models (T2 Macs)
    - Honor acpi_backlight= auto-detect-code + kernel cmdline option
      to switch between gmux and apple_bl backlight drivers and remove
      own custom handling for this

 -  x86-android-tablets: Refactor / cleanup + new hw support

 -  Miscellaneous other cleanups / fixes

* tag 'platform-drivers-x86-v6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (178 commits)
  platform/x86: x86-android-tablets: Add accelerometer support for Yoga Tablet 2 1050/830 series
  platform/x86: x86-android-tablets: Add "yogabook-touch-kbd-digitizer-switch" pdev for Lenovo Yoga Book
  platform/x86: x86-android-tablets: Add Wacom digitizer info for Lenovo Yoga Book
  platform/x86: x86-android-tablets: Update Yoga Book HiDeep touchscreen comment
  platform/x86: thinkpad_acpi: Fix Embedded Controller access on X380 Yoga
  platform/x86/intel/sdsi: Change mailbox timeout
  platform/x86/intel/pmt: Ignore uninitialized entries
  platform/x86: amd: pmc: provide user message where s0ix is not supported
  platform/x86/amd: pmc: Fix memory leak in amd_pmc_stb_debugfs_open_v2()
  mlxbf-bootctl: Add sysfs file for BlueField boot fifo
  platform/x86: amd: pmc: Remove __maybe_unused from amd_pmc_suspend_handler()
  platform/x86/intel/pmc/mtl: Put GNA/IPU/VPU devices in D3
  platform/x86/amd: pmc: Move out of BIOS SMN pair for STB init
  platform/x86/amd: pmc: Utilize SMN index 0 for driver probe
  platform/x86/amd: pmc: Move idlemask check into `amd_pmc_idlemask_read`
  platform/x86/amd: pmc: Don't dump data after resume from s0i3 on picasso
  platform/x86/amd: pmc: Hide SMU version and program attributes for Picasso
  platform/x86/amd: pmc: Don't try to read SMU version on Picasso
  platform/x86/amd/pmf: Move out of BIOS SMN pair for driver probe
  platform/x86: intel-uncore-freq: Add client processors
  ...
 2023-04-25 16:59:48 -07:00
Linus Torvalds
c8cc58e289 drm next for 6.4-rc1 
New drivers:
 - add QAIC acceleration driver
 
 dma-buf:
 - constify kobj_type structs
 - Reject prime DMA-Buf attachment if get_sg_table is missing.
 
 fbdev:
 - cmdline parser fixes
 - implement fbdev emulation for GEM DMA drivers
 - always use shadow buffer in fbdev emulation helpers
 
 dma-fence:
 - add deadline hint to fences
 - signal private stub fence
 
 core:
 - improve DisplayID 2.0 and EDID parsing
 - add gem eviction function + callback
 - prep to convert shmem helper to GEM resv lock
 - move suballocator from radeon/amdgpu to core for Xe
 - HPD polling fixes
 - Documentation improvements
 - Add atomic enable_plane callback
 - use tgid instead of pid for client tracking
 - DP: Add SDP Error Detection Configuration Register
 - Add prime import/export to vram-helper
 - use pci aperture helpers in more drivers
 
 panel:
 - Radxa 8/10HD support
 - Samsung AMD495QA01 support
 - Elida KD50T048A
 - Sony TD4353
 - Novatek NT36523
 - STARRY 2081101QFH032011-53G
 - B133UAN01.0
 - AUO NE135FBM-N41
 
 i915:
 - More MTL enabling
 - fix s/r problems with MEI/PXP
 - Implement fb_dirty for PSR,FBC,DRRS fixes
 - Fix eDP+DSI dual panel systems
 - Fix issue #6333: "list_add corruption" and full system lockup from
   performance monitoring
 - Don't use stolen memory or BAR for ring buffers on LLC platforms
 - Make sure DSM size has correct 1MiB granularity on Gen12+
 - Whitelist COMMON_SLICE_CHICKEN3 for UMD access on Gen12+
 - Add engine TLB invalidation for Meteorlake
 - Fix GSC races on driver load/unload on Meteorlake+
 - Make kobj_type structures constant
 - Move fd_install after last use of fence
 - wm/vblank refactoring
 - display code refactoring
 - Create GSC submission targeting HDCP and PXP usages on MTL+
 - Enable HDCP2.x via GSC CS
 - Fix context runtime accounting on sysfs fdinfo for heavy workloads
 - Use i915 instead of dev_priv insied the file_priv structure
 - Replace fake flex-array with flexible-array member
 
 amdgpu:
 - Make kobj structures const
 - Generalize dmabuf import to work with KFD
 - Add capped/uncapped workload handling for supported APUs
 - Expose additional memory stats via fdinfo
 - Register vga_switcheroo for apple-gmux
 - Initial NBIO7.9, GC 9.4.3, GFXHUB 1.2, MMHUB 1.8 support
 - Initial DC FAM infrastructure
 - Link DC backlight to connector device rather than PCI device
 - Add sysfs nodes for secondary VCN clocks
 
 amdkfd:
 - Make kobj structures const
 - Support for exporting buffers via dmabuf
 - Multi-VMA page migration fixes
 - initial GC 9.4.3 support
 
 radeon:
 - iMac fix
 - convert to client based fbdev emulation
 
 habanalabs:
 - Add opcodes to the CS ioctl to allow user to stall/resume specific engines
   inside Gaudi2.
 - INFO ioctl the amount of device memory that the driver
   and f/w reserve for themselves.
 - INFO ioctl a bit-mask of the available rotator engines
 - INFO ioctl the register's address of the f/w that should
   be used to trigger interrupts
 - INFO ioctl two new opcodes to fetch information on h/w and f/w events
 - Enable graceful reset mechanism for compute-reset.
 - Align to the latest firmware specs.
 - Enforce the release order of the compute device and dma-buf.
 
 msm:
 - UBWC decoder programming rework
 - SM8550, SM8450 bindings update
 - uapi C++ fix
 - a3xx and a4xx devfreq support
 - GPU and GEM updates to avoid allocations which could trigger
   reclaim (shrinker) in fence signaling path
 - dma-fence deadline hint support and wait-boost
 - a640/650 speed bin support
 
 cirrus:
 - convert to regular atomic helpers
 - add damage clipping
 
 mediatek:
 - 10-bit overlay support
 - mt8195 support
 - Only trigger DRM HPD events if bridge is attached
 - Change the aux retries times when receiving AUX_DEFER
 
 rockchip:
 - add 4K support
 
 vc4:
 - use drm_gem_objects
 
 virtio:
 - allow KMS support to be disabled
 - add damage clipping
 
 vmwgfx:
 - buffer object lifetime fixes
 
 exynos:
 - move MIPI DSI driver to drm bridge for iMX sharing
 - use kernel fbdev emulation
 
 panfrost:
 - add support for mali MT81xx devices
 - add speed binning support
 
 lima:
 - add usage stats
 
 tegra:
 - fbdev client conversion
 
 vkms:
 - Add primary plane positioning support
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Merge tag 'drm-next-2023-04-24' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "There is a new Qualcomm accel driver for their QAIC, dma-fence got a
  deadline feature added, lots of refactoring around fbdev emulation,
  and the usual pre-release hw enablements from AMD and Intel and fixes
  everywhere.

  New drivers:
   - add QAIC acceleration driver

  dma-buf:
   - constify kobj_type structs
   - Reject prime DMA-Buf attachment if get_sg_table is missing.

  fbdev:
   - cmdline parser fixes
   - implement fbdev emulation for GEM DMA drivers
   - always use shadow buffer in fbdev emulation helpers

  dma-fence:
   - add deadline hint to fences
   - signal private stub fence

  core:
   - improve DisplayID 2.0 and EDID parsing
   - add gem eviction function + callback
   - prep to convert shmem helper to GEM resv lock
   - move suballocator from radeon/amdgpu to core for Xe
   - HPD polling fixes
   - Documentation improvements
   - Add atomic enable_plane callback
   - use tgid instead of pid for client tracking
   - DP: Add SDP Error Detection Configuration Register
   - Add prime import/export to vram-helper
   - use pci aperture helpers in more drivers

  panel:
   - Radxa 8/10HD support
   - Samsung AMD495QA01 support
   - Elida KD50T048A
   - Sony TD4353
   - Novatek NT36523
   - STARRY 2081101QFH032011-53G
   - B133UAN01.0
   - AUO NE135FBM-N41

  i915:
   - More MTL enabling
   - fix s/r problems with MEI/PXP
   - Implement fb_dirty for PSR,FBC,DRRS fixes
   - Fix eDP+DSI dual panel systems
   - Fix issue #6333: "list_add corruption" and full system lockup from
     performance monitoring
   - Don't use stolen memory or BAR for ring buffers on LLC platforms
   - Make sure DSM size has correct 1MiB granularity on Gen12+
   - Whitelist COMMON_SLICE_CHICKEN3 for UMD access on Gen12+
   - Add engine TLB invalidation for Meteorlake
   - Fix GSC races on driver load/unload on Meteorlake+
   - Make kobj_type structures constant
   - Move fd_install after last use of fence
   - wm/vblank refactoring
   - display code refactoring
   - Create GSC submission targeting HDCP and PXP usages on MTL+
   - Enable HDCP2.x via GSC CS
   - Fix context runtime accounting on sysfs fdinfo for heavy workloads
   - Use i915 instead of dev_priv insied the file_priv structure
   - Replace fake flex-array with flexible-array member

  amdgpu:
   - Make kobj structures const
   - Generalize dmabuf import to work with KFD
   - Add capped/uncapped workload handling for supported APUs
   - Expose additional memory stats via fdinfo
   - Register vga_switcheroo for apple-gmux
   - Initial NBIO7.9, GC 9.4.3, GFXHUB 1.2, MMHUB 1.8 support
   - Initial DC FAM infrastructure
   - Link DC backlight to connector device rather than PCI device
   - Add sysfs nodes for secondary VCN clocks

  amdkfd:
   - Make kobj structures const
   - Support for exporting buffers via dmabuf
   - Multi-VMA page migration fixes
   - initial GC 9.4.3 support

  radeon:
   - iMac fix
   - convert to client based fbdev emulation

  habanalabs:
   - Add opcodes to the CS ioctl to allow user to stall/resume specific
     engines inside Gaudi2.
   - INFO ioctl the amount of device memory that the driver and f/w
     reserve for themselves.
   - INFO ioctl a bit-mask of the available rotator engines
   - INFO ioctl the register's address of the f/w that should be used to
     trigger interrupts
   - INFO ioctl two new opcodes to fetch information on h/w and f/w
     events
   - Enable graceful reset mechanism for compute-reset.
   - Align to the latest firmware specs.
   - Enforce the release order of the compute device and dma-buf.

  msm:
   - UBWC decoder programming rework
   - SM8550, SM8450 bindings update
   - uapi C++ fix
   - a3xx and a4xx devfreq support
   - GPU and GEM updates to avoid allocations which could trigger
     reclaim (shrinker) in fence signaling path
   - dma-fence deadline hint support and wait-boost
   - a640/650 speed bin support

  cirrus:
   - convert to regular atomic helpers
   - add damage clipping

  mediatek:
   - 10-bit overlay support
   - mt8195 support
   - Only trigger DRM HPD events if bridge is attached
   - Change the aux retries times when receiving AUX_DEFER

  rockchip:
   - add 4K support

  vc4:
   - use drm_gem_objects

  virtio:
   - allow KMS support to be disabled
   - add damage clipping

  vmwgfx:
   - buffer object lifetime fixes

  exynos:
   - move MIPI DSI driver to drm bridge for iMX sharing
   - use kernel fbdev emulation

  panfrost:
   - add support for mali MT81xx devices
   - add speed binning support

  lima:
   - add usage stats

  tegra:
   - fbdev client conversion

  vkms:
   - Add primary plane positioning support"

* tag 'drm-next-2023-04-24' of git://anongit.freedesktop.org/drm/drm: (1495 commits)
  drm/i915/dp_mst: Fix active port PLL selection for secondary MST streams
  drm/exynos: Implement fbdev emulation as in-kernel client
  drm/exynos: Initialize fbdev DRM client
  drm/exynos: Remove fb_helper from struct exynos_drm_private
  drm/exynos: Remove struct exynos_drm_fbdev
  drm/exynos: Remove exynos_gem from struct exynos_drm_fbdev
  drm/i915: Fix memory leaks in i915 selftests
  drm/i915: Make intel_get_crtc_new_encoder() less oopsy
  drm/i915/gt: Avoid out-of-bounds access when loading HuC
  drm/amdgpu: add some basic elements for multiple XCD case
  drm/amdgpu: move vmhub out of amdgpu_ring_funcs (v4)
  Revert "drm/amdgpu: enable ras for mp0 v13_0_10 on SRIOV"
  drm/amdgpu: add common ip block for GC 9.4.3
  drm/amd/display: Add logging when DP link training Clock recovery is Successful
  drm/amdgpu: add common early init support for GC 9.4.3
  drm/amdgpu: switch to v9_4_3 gfx_funcs callbacks for GC 9.4.3
  drm/amd/display: Add logging when setting DP sink power state fails
  drm/amdkfd: Add gfx_target_version for GC 9.4.3
  drm/amdkfd: Enable HW_UPDATE_RPTR on GC 9.4.3
  drm/amdgpu: reserve the old gc_11_0_*_mes.bin
  ...
 2023-04-25 16:12:15 -07:00
Thomas Zimmermann
b04ab8c13a fbdev: vfb: Init owner field of struct fb_ops 
Initialize the owner field of struct fb_ops. Required to prevent
module unloading while the driver is in use.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:33 +02:00
Thomas Zimmermann
25ec15abb0 fbdev: ps3fb: Init owner field of struct fb_ops 
Initialize the owner field of struct fb_ops. Required to prevent
module unloading while the driver is in use.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:33 +02:00
Thomas Zimmermann
55caa9a7ac fbdev: 68328fb: Init owner field of struct fb_ops 
Initialize the owner field of struct fb_ops. Required to prevent
module unloading while the driver is in use.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:33 +02:00
Christophe JAILLET
b3a7a9ab65 fbdev: mmp: Fix deferred clk handling in mmphw_probe() 
When dev_err_probe() is called, 'ret' holds the value of the previous
successful devm_request_irq() call.
'ret' should be assigned with a meaningful value before being used in
dev_err_probe().

While at it, use and return "PTR_ERR(ctrl->clk)" instead of a hard-coded
"-ENOENT" so that -EPROBE_DEFER is handled and propagated correctly.

Fixes: 81b6342056 ("fbdev: mmp: Make use of the helper function dev_err_probe()")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:33 +02:00
Uwe Kleine-König
0ddc95b59f fbdev: xilinxfb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:33 +02:00
Uwe Kleine-König
89c4bbd457 fbdev: wmt_ge_rops: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:33 +02:00
Uwe Kleine-König
024a3cafa5 fbdev: wm8505fb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:33 +02:00
Uwe Kleine-König
3ab20cdc75 fbdev: vt8500lcdfb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:33 +02:00
Uwe Kleine-König
87b1e9a574 fbdev: via: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:33 +02:00
Uwe Kleine-König
4a5ef62ce7 fbdev: vga16fb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:32 +02:00
Uwe Kleine-König
24f677094e fbdev: vfb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:32 +02:00
Uwe Kleine-König
f3db09aae1 fbdev: vesafb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:32 +02:00
Uwe Kleine-König
94bada5828 fbdev: uvesafb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:32 +02:00
Uwe Kleine-König
1fd9927394 fbdev: tcx: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:32 +02:00
Uwe Kleine-König
7b49f61a72 fbdev: sm501fb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:32 +02:00
Uwe Kleine-König
4ba34066a2 fbdev: simplefb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:32 +02:00
Uwe Kleine-König
0682408853 fbdev: sh_mobile_lcdcfb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:32 +02:00
Uwe Kleine-König
03dfa8d2be fbdev: sh7760fb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:32 +02:00
Uwe Kleine-König
f2f34fb9f9 fbdev: s3c-fb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:32 +02:00
Uwe Kleine-König
77da73b32c fbdev: s1d13xxxfb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:31 +02:00
Uwe Kleine-König
eb703b6089 fbdev: pxafb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:31 +02:00
Uwe Kleine-König
2872c2913a fbdev: pxa3xx-gcu: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:31 +02:00
Uwe Kleine-König
bcfb6d43bb fbdev: pxa168fb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:31 +02:00
Uwe Kleine-König
cc6a0d407c fbdev: platinumfb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:31 +02:00
Uwe Kleine-König
4d7960389f fbdev: p9100: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:31 +02:00
Uwe Kleine-König
dc6b77badc fbdev: omapfb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:31 +02:00
Uwe Kleine-König
db031426eb fbdev: offb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:31 +02:00
Uwe Kleine-König
d14e9328fe fbdev: ocfb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:31 +02:00
Uwe Kleine-König
419368fba7 fbdev: mx3fb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:31 +02:00
Uwe Kleine-König
d0513776c1 fbdev: metronomefb: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:30 +02:00
Uwe Kleine-König
3a2ab02ddf fbdev: mb862xx: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:30 +02:00
Uwe Kleine-König
3eafb6a376 fbdev: leo: Convert to platform remove callback returning void 
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
 2023-04-24 11:48:30 +02:00