Al Viro 1f36cd05e0 sparc32: fix a braino in fault handling in csum_and_copy_..._user() ... Fault handler used to make non-trivial calls, so it needed to set a stack frame up. Used to be save ... - grab a stack frame, old %o... become %i... .... ret - go back to address originally in %o7, currently %i7 restore - switch to previous stack frame, in delay slot Non-trivial calls had been gone since ab5e8b3312 and that code should have become retl - go back to address in %o7 clr %o0 - have return value set to 0 What it had become instead was ret - go back to address in %i7 - return address of *caller* clr %o0 - have return value set to 0 which is not good, to put it mildly - we forcibly return 0 from csum_and_copy_{from,to}_iter() (which is what the call of that thing had been inlined into) and do that without dropping the stack frame of said csum_and_copy_..._iter(). Confuses the hell out of the caller of csum_and_copy_..._iter(), obviously... Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Fixes: ab5e8b3312 "sparc32: propagate the calling conventions change down to __csum_partial_copy_sparc_generic()" Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>		2023-10-27 20:06:06 -04:00
..
boot	kbuild: factor out the common installation code into scripts/install.sh	2022-05-11 21:45:53 +09:00
configs	arch/*/configs/*defconfig: Replace AUTOFS4_FS by AUTOFS_FS	2023-07-29 14:08:22 -07:00
crypto	sparc: Explicitly include correct DT includes	2023-08-28 13:30:57 -05:00
include	mm: hugetlb: add huge page size param to set_huge_pte_at()	2023-09-29 17:20:47 -07:00
kernel	Kbuild updates for v6.6	2023-09-05 11:01:47 -07:00
lib	sparc32: fix a braino in fault handling in csum_and_copy_..._user()	2023-10-27 20:06:06 -04:00
math-emu	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
mm	mm: hugetlb: add huge page size param to set_huge_pte_at()	2023-09-29 17:20:47 -07:00
net	net: remove skb->vlan_present	2022-11-11 18:18:05 -08:00
power	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
prom	sparc64: Replace all non-returning strlcpy with strscpy	2023-06-14 12:04:06 -07:00
vdso	treewide: use get_random_u32_below() instead of deprecated function	2022-11-18 02:15:15 +01:00
video	arch/sparc: Add module license and description for fbdev helpers	2023-06-29 13:30:02 +02:00
Kbuild	kbuild: use more subdir- for visiting subdirectories while cleaning	2021-10-24 13:49:46 +09:00
Kconfig	Merge branch 'expand-stack'	2023-06-28 20:35:21 -07:00
Kconfig.debug	watchdog/sparc64: define HARDLOCKUP_DETECTOR_SPARC64	2023-06-19 16:25:29 -07:00
Makefile	Merge drm/drm-next into drm-misc-next	2023-05-09 15:03:40 +02:00