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Masahiro Yamada 8294b4a889 riscv: fix -Wundef warning for CONFIG_RISCV_BOOT_SPINWAIT 
commit 5b89c6f9b2 upstream.

Since commit 80b6093b55 ("kbuild: add -Wundef to KBUILD_CPPFLAGS
for W=1 builds"), building with W=1 detects misuse of #if.

  $ make W=1 ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- arch/riscv/kernel/
    [snip]
    AS      arch/riscv/kernel/head.o
  arch/riscv/kernel/head.S:329:5: warning: "CONFIG_RISCV_BOOT_SPINWAIT" is not defined, evaluates to 0 [-Wundef]
    329 | #if CONFIG_RISCV_BOOT_SPINWAIT
        |     ^~~~~~~~~~~~~~~~~~~~~~~~~~

CONFIG_RISCV_BOOT_SPINWAIT is a bool option. #ifdef should be used.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Fixes: 2ffc48fc70 ("RISC-V: Move spinwait booting method to its own config")
Link: https://lore.kernel.org/r/20230106161213.2374093-1-masahiroy@kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-01 08:34:39 +01:00
arch riscv: fix -Wundef warning for CONFIG_RISCV_BOOT_SPINWAIT 2023-02-01 08:34:39 +01:00
block block: mq-deadline: Rename deadline_is_seq_writes() 2023-01-24 07:24:44 +01:00
certs certs: make system keyring depend on built-in x509 parser 2022-09-24 04:31:18 +09:00
crypto crypto: tcrypt - Fix multibuffer skcipher speed test mem leak 2022-12-31 13:32:34 +01:00
Documentation docs: Fix path paste-o for /sys/kernel/warn_count 2023-01-24 07:24:41 +01:00
drivers scsi: ufs: core: Fix devfreq deadlocks 2023-02-01 08:34:39 +01:00
fs ovl: fail on invalid uid/gid mapping at copy up 2023-02-01 08:34:38 +01:00
include scsi: ufs: core: Fix devfreq deadlocks 2023-02-01 08:34:39 +01:00
init gcc: disable -Warray-bounds for gcc-11 too 2023-01-14 10:33:43 +01:00
io_uring io_uring/net: cache provided buffer group value for multishot receives 2023-02-01 08:34:38 +01:00
ipc ipc: fix memory leak in init_mqueue_fs() 2022-12-31 13:32:01 +01:00
kernel trace_events_hist: add check for return value of 'create_hist_field' 2023-02-01 08:34:37 +01:00
lib lockref: stop doing cpu_relax in the cmpxchg loop 2023-02-01 08:34:34 +01:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm panic: Consolidate open-coded panic_on_warn checks 2023-01-24 07:24:41 +01:00
net wifi: mac80211: Fix iTXQ AMPDU fragmentation handling 2023-02-01 08:34:36 +01:00
rust Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
samples ftrace: Export ftrace_free_filter() to modules 2023-02-01 08:34:37 +01:00
scripts ftrace/scripts: Update the instructions for ftrace-bisect.sh 2023-02-01 08:34:37 +01:00
security tomoyo: fix broken dependency on *.conf.default 2023-02-01 08:34:06 +01:00
sound ASoC: fsl-asoc-card: Fix naming of AC'97 CODEC widgets 2023-02-01 08:34:31 +01:00
tools Revert "selftests/bpf: check null propagation only neither reg is PTR_TO_BTF_ID" 2023-02-01 08:34:34 +01:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt kvm/vfio: Fix potential deadlock on vfio group_lock 2023-02-01 08:34:36 +01:00
.clang-format inet: ping: use hlist_nulls rcu iterator during lookup 2022-12-01 12:42:46 +01:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
.mailmap 9 hotfixes. 6 for MM, 3 for other areas. Four of these patches address 2022-12-10 17:10:52 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Remove Michal Marek from Kbuild maintainers 2022-11-16 14:53:00 +09:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS panic: Expose "warn_count" to sysfs 2023-01-24 07:24:41 +01:00
Makefile kbuild: fix 'make modules' error when CONFIG_DEBUG_INFO_BTF_MODULES=y 2023-02-01 08:34:08 +01:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.