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tpm: avoid -Wunused-but-set-variable

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Outside of the EFI tpm code, the TPM_MEMREMAP()/TPM_MEMUNMAP functions are
defined as trivial macros, leading to the mapping_size variable ending
up unused:

In file included from drivers/char/tpm/tpm-sysfs.c:16:
In file included from drivers/char/tpm/tpm.h:28:
include/linux/tpm_eventlog.h:167:6: error: variable 'mapping_size' set but not used [-Werror,-Wunused-but-set-variable]
  167 |         int mapping_size;

Turn the stubs into inline functions to avoid this warning.

Cc: stable@vger.kernel.org # v5.3+
Fixes: c46f340569 ("tpm: Reserve the TPM final events table")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
This commit is contained in:
Arnd Bergmann
2024-03-22 14:22:48 +01:00
committed by Jarkko Sakkinen
parent c424d2664f
commit 6f1d4d2ecf
1 changed files with 7 additions and 2 deletions
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9
include/linux/tpm_eventlog.h
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@@ -131,11 +131,16 @@ struct tcg_algorithm_info {
};
#ifndef TPM_MEMREMAP
#define TPM_MEMREMAP(start, size) NULL
static inline void *TPM_MEMREMAP(unsigned long start, size_t size)
{
return NULL;
}
#endif
#ifndef TPM_MEMUNMAP
#define TPM_MEMUNMAP(start, size) do{} while(0)
static inline void TPM_MEMUNMAP(void *mapping, size_t size)
{
}
#endif
/**