TechPanelGM/kernel_xiaomi_sm8250
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

cpufeature: avoid warning when compiling with clang

Browse Source 
[ Upstream commit c785896b21dd8e156326ff660050b0074d3431df ]

The table id (second) argument to MODULE_DEVICE_TABLE is often
referenced otherwise. This is not the case for CPU features. This
leads to warnings when building the kernel with Clang:
  arch/arm/crypto/aes-ce-glue.c:450:1: warning: variable
    'cpu_feature_match_AES' is not needed and will not be emitted
    [-Wunneeded-internal-declaration]
  module_cpu_feature_match(AES, aes_init);
  ^

Avoid warnings by using __maybe_unused, similar to commit 1f318a8baf
("modules: mark __inittest/__exittest as __maybe_unused").

Fixes: 67bad2fdb7 ("cpu: add generic support for CPU feature based module autoloading")
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Stefan Agner
2018-09-15 21:38:24 -07:00
committed by Greg Kroah-Hartman
parent ad28c2ba43
commit 9e70da12d0
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/cpufeature.h
View File

@@ -45,7 +45,7 @@
* 'asm/cpufeature.h' of your favorite architecture. * 'asm/cpufeature.h' of your favorite architecture.
*/ */
#define module_cpu_feature_match(x, __initfunc) \ #define module_cpu_feature_match(x, __initfunc) \
static struct cpu_feature const cpu_feature_match_ ## x[] = \ static struct cpu_feature const __maybe_unused cpu_feature_match_ ## x[] = \
{ { .feature = cpu_feature(x) }, { } }; \ { { .feature = cpu_feature(x) }, { } }; \
MODULE_DEVICE_TABLE(cpu, cpu_feature_match_ ## x); \ MODULE_DEVICE_TABLE(cpu, cpu_feature_match_ ## x); \
\ \