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| author |   Richard Henderson <richard.henderson@linaro.org> | 2020-01-10 14:54:22 +0000 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2020-01-25 12:18:51 -0500 |
| commit | 4cb760b02419061209b9b4cc2557986a6bf93e73 (patch) | |
| tree | c08bb48e7994e4cced7e30c5e115d065f79e7fde /arch/s390/include/asm/archrandom.h | |
| parent | powerpc: Mark archrandom.h functions __must_check (diff) | |
| download | linux-dev-4cb760b02419061209b9b4cc2557986a6bf93e73.tar.xz linux-dev-4cb760b02419061209b9b4cc2557986a6bf93e73.zip | |
s390x: Mark archrandom.h functions __must_check
We must not use the pointer output without validating the
success of the random read.
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20200110145422.49141-11-broonie@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to '')
| -rw-r--r-- | arch/s390/include/asm/archrandom.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/s390/include/asm/archrandom.h b/arch/s390/include/asm/archrandom.h index 9a6835137a16..de61ce562052 100644 --- a/arch/s390/include/asm/archrandom.h +++ b/arch/s390/include/asm/archrandom.h @@ -21,17 +21,17 @@ extern atomic64_t s390_arch_random_counter; bool s390_arch_random_generate(u8 *buf, unsigned int nbytes); -static inline bool arch_get_random_long(unsigned long *v) +static inline bool __must_check arch_get_random_long(unsigned long *v) { return false; } -static inline bool arch_get_random_int(unsigned int *v) +static inline bool __must_check arch_get_random_int(unsigned int *v) { return false; } -static inline bool arch_get_random_seed_long(unsigned long *v) +static inline bool __must_check arch_get_random_seed_long(unsigned long *v) { if (static_branch_likely(&s390_arch_random_available)) { return s390_arch_random_generate((u8 *)v, sizeof(*v)); @@ -39,7 +39,7 @@ static inline bool arch_get_random_seed_long(unsigned long *v) return false; } -static inline bool arch_get_random_seed_int(unsigned int *v) +static inline bool __must_check arch_get_random_seed_int(unsigned int *v) { if (static_branch_likely(&s390_arch_random_available)) { return s390_arch_random_generate((u8 *)v, sizeof(*v)); |