Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.15 498/779] um: random: Dont initialise hwrng struct with zero | Date | Mon, 15 Aug 2022 20:02:22 +0200 |
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From: Christopher Obbard <chris.obbard@collabora.com>
[ Upstream commit 9e70cbd11b03889c92462cf52edb2bd023c798fa ]
Initialising the hwrng struct with zeros causes a compile-time sparse warning:
$ ARCH=um make -j10 W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ... CHECK arch/um/drivers/random.c arch/um/drivers/random.c:31:31: sparse: warning: Using plain integer as NULL pointer
Fix the warning by not initialising the hwrng struct with zeros as it is initialised anyway during module init.
Fixes: 72d3e093afae ("um: random: Register random as hwrng-core device") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Christopher Obbard <chris.obbard@collabora.com> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Sasha Levin <sashal@kernel.org> --- arch/um/drivers/random.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/um/drivers/random.c b/arch/um/drivers/random.c index 433a3f8f2ef3..32b3341fe970 100644 --- a/arch/um/drivers/random.c +++ b/arch/um/drivers/random.c @@ -28,7 +28,7 @@ * protects against a module being loaded twice at the same time. */ static int random_fd = -1; -static struct hwrng hwrng = { 0, }; +static struct hwrng hwrng; static DECLARE_COMPLETION(have_data); static int rng_dev_read(struct hwrng *rng, void *buf, size_t max, bool block) -- 2.35.1
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