Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit eed89d0f authored by Ian Molton's avatar Ian Molton Committed by Herbert Xu
Browse files

hwrng: core - Prevent too-small buffer sizes 



This patch prevents the hw_random core using too small of a buffer
on machines with small cacheline sizes.

Signed-off-by: default avatarIan Molton <ian.molton@collabora.co.uk>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent bb347d98

drivers/char/hw_random/core.c

+2 −1
Original line number Diff line number Diff line
@@ -53,7 +53,8 @@ static struct hwrng *current_rng; 
static LIST_HEAD(rng_list);

static DEFINE_MUTEX(rng_mutex);

static int data_avail;

static u8 rng_buffer[SMP_CACHE_BYTES] __cacheline_aligned;

static u8 rng_buffer[SMP_CACHE_BYTES < 32 ? 32 : SMP_CACHE_BYTES]

	__cacheline_aligned;



static inline int hwrng_init(struct hwrng *rng)

{