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crypto: arm64 - Fix unused variable compilation warnings of cpu_feature

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The cpu feature defined by MODULE_DEVICE_TABLE is only referenced when
compiling as a module, and the warning of unused variable will be
encountered when compiling with intree. The warning can be removed by
adding the __maybe_unused flag.

Fixes: 03c9a333fe ("crypto: arm64/ghash - add NEON accelerated fallback for 64-bit PMULL")
Fixes: ae1b83c7d5 ("crypto: arm64/sm4 - add CE implementation for GCM mode")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Tianjia Zhang 2022-11-10 18:42:04 +08:00 committed by Herbert Xu
parent 4f1c596df7
commit 824db5cd1e
2 changed files with 2 additions and 2 deletions
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2
arch/arm64/crypto/ghash-ce-glue.c
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@ -508,7 +508,7 @@ static void __exit ghash_ce_mod_exit(void)
crypto_unregister_shash(&ghash_alg); crypto_unregister_shash(&ghash_alg);
} }
static const struct cpu_feature ghash_cpu_feature[] = { static const struct cpu_feature __maybe_unused ghash_cpu_feature[] = {
{ cpu_feature(PMULL) }, { } { cpu_feature(PMULL) }, { }
}; };
MODULE_DEVICE_TABLE(cpu, ghash_cpu_feature); MODULE_DEVICE_TABLE(cpu, ghash_cpu_feature);

2
arch/arm64/crypto/sm4-ce-gcm-glue.c
View file

@ -271,7 +271,7 @@ static void __exit sm4_ce_gcm_exit(void)
crypto_unregister_aead(&sm4_gcm_alg); crypto_unregister_aead(&sm4_gcm_alg);
} }
static const struct cpu_feature sm4_ce_gcm_cpu_feature[] = { static const struct cpu_feature __maybe_unused sm4_ce_gcm_cpu_feature[] = {
{ cpu_feature(PMULL) }, { cpu_feature(PMULL) },
{} {}
}; };