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authorDavid Laight <david.laight.linux@gmail.com>2025-11-19 22:41:12 +0000
committerHerbert Xu <herbert@gondor.apana.org.au>2025-11-24 17:44:14 +0800
commit14ca8ce1fcbbd4448c302e144052cfc2fe288232 (patch)
treeefdfc69bc7a9d8ce487867226b9e69ca2fe8fb95
parent0f8ead58b6dce9520fc3f9ff7f943bb0627a7a19 (diff)
crypto: ccp - use min() instead of min_t()
min_t(unsigned int, a, b) casts an 'unsigned long' to 'unsigned int'. Use min(a, b) instead as it promotes any 'unsigned int' to 'unsigned long' and so cannot discard significant bits. In this case the 'unsigned long' value is small enough that the result is ok. Detected by an extra check added to min_t(). Signed-off-by: David Laight <david.laight.linux@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--drivers/crypto/ccp/ccp-dev.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/crypto/ccp/ccp-dev.c b/drivers/crypto/ccp/ccp-dev.c
index c531d13d971f..246801912e1a 100644
--- a/drivers/crypto/ccp/ccp-dev.c
+++ b/drivers/crypto/ccp/ccp-dev.c
@@ -507,7 +507,7 @@ int ccp_trng_read(struct hwrng *rng, void *data, size_t max, bool wait)
{
struct ccp_device *ccp = container_of(rng, struct ccp_device, hwrng);
u32 trng_value;
- int len = min_t(int, sizeof(trng_value), max);
+ int len = min(sizeof(trng_value), max);
/* Locking is provided by the caller so we can update device
* hwrng-related fields safely