From: Stefan Agner stefan@agner.ch
[ Upstream commit cd560235d8f9ddd94aa51e1c4dabdf3212b9b241 ]
The table id (second) argument to MODULE_DEVICE_TABLE is often referenced otherwise. This is not the case for CPU features. This leads to a warning when building the kernel with Clang: arch/arm/crypto/crc32-ce-glue.c:239:33: warning: variable 'crc32_cpu_feature' is not needed and will not be emitted [-Wunneeded-internal-declaration] static const struct cpu_feature crc32_cpu_feature[] = { ^
Avoid warnings by using __maybe_unused, similar to commit 1f318a8bafcf ("modules: mark __inittest/__exittest as __maybe_unused").
Fixes: 2a9faf8b7e43 ("crypto: arm/crc32 - enable module autoloading based on CPU feature bits") 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 --- arch/arm/crypto/crc32-ce-glue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/crypto/crc32-ce-glue.c b/arch/arm/crypto/crc32-ce-glue.c index 96e62ec105d06..cd9e93b46c2dd 100644 --- a/arch/arm/crypto/crc32-ce-glue.c +++ b/arch/arm/crypto/crc32-ce-glue.c @@ -236,7 +236,7 @@ static void __exit crc32_pmull_mod_exit(void) ARRAY_SIZE(crc32_pmull_algs)); }
-static const struct cpu_feature crc32_cpu_feature[] = { +static const struct cpu_feature __maybe_unused crc32_cpu_feature[] = { { cpu_feature(CRC32) }, { cpu_feature(PMULL) }, { } }; MODULE_DEVICE_TABLE(cpu, crc32_cpu_feature);