From: Richard Henderson <richard.henderson@linaro.org>
To: linux-arch@vger.kernel.org
Cc: linux-s390@vger.kernel.org, x86@kernel.org,
Paul Mackerras <paulus@samba.org>,
linuxppc-dev@lists.ozlabs.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 5/6] powerpc: Mark archrandom.h functions __must_check
Date: Mon, 28 Oct 2019 22:05:58 +0100 [thread overview]
Message-ID: <20191028210559.8289-6-rth@twiddle.net> (raw)
In-Reply-To: <20191028210559.8289-1-rth@twiddle.net>
We cannot use the pointer output without validating the
success of the random read.
Signed-off-by: Richard Henderson <rth@twiddle.net>
---
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
---
arch/powerpc/include/asm/archrandom.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/include/asm/archrandom.h b/arch/powerpc/include/asm/archrandom.h
index f8a887c8b7f8..ee214b153a71 100644
--- a/arch/powerpc/include/asm/archrandom.h
+++ b/arch/powerpc/include/asm/archrandom.h
@@ -6,17 +6,17 @@
#include <asm/machdep.h>
-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 (ppc_md.get_random_seed)
return ppc_md.get_random_seed(v);
@@ -24,7 +24,7 @@ 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)
{
unsigned long val;
bool rc;
--
2.17.1
next prev parent reply other threads:[~2019-10-28 21:39 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-28 21:05 [PATCH 0/6] Improvements for random.h/archrandom.h Richard Henderson
2019-10-28 21:05 ` [PATCH 1/6] random: Mark CONFIG_ARCH_RANDOM functions __must_check Richard Henderson
2019-10-29 8:21 ` Ard Biesheuvel
2019-10-28 21:05 ` [PATCH 2/6] x86: Move arch_has_random* inside CONFIG_ARCH_RANDOM Richard Henderson
2019-10-28 21:05 ` [PATCH 3/6] x86: Mark archrandom.h functions __must_check Richard Henderson
2019-10-28 21:05 ` [PATCH 4/6] powerpc: Use bool in archrandom.h Richard Henderson
2019-10-28 21:05 ` Richard Henderson [this message]
2019-10-30 11:37 ` [PATCH 5/6] powerpc: Mark archrandom.h functions __must_check Michael Ellerman
2019-10-28 21:05 ` [PATCH 6/6] s390x: " Richard Henderson
2019-10-29 7:26 ` Harald Freudenberger
2019-10-29 13:18 ` Richard Henderson
2019-10-30 7:56 ` Harald Freudenberger
2019-10-29 8:22 ` [PATCH 0/6] Improvements for random.h/archrandom.h Ard Biesheuvel
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