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authorHerbert Xu <herbert@gondor.apana.org.au>2020-08-28 17:11:25 +1000
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-28 11:21:20 -0700
commitef91bb196b0db1013ef8705367bc2d7944ef696b (patch)
tree7a3fc6c493f1cce875a5d2e7baf8cff4f72dcc0d /include
parente30942859030199dab5ad73f95faac226133c639 (diff)
kernel.h: Silence sparse warning in lower_32_bits
I keep getting sparse warnings in crypto such as: CHECK drivers/crypto/ccree/cc_hash.c drivers/crypto/ccree/cc_hash.c:49:9: warning: cast truncates bits from constant value (47b5481dbefa4fa4 becomes befa4fa4) drivers/crypto/ccree/cc_hash.c:49:26: warning: cast truncates bits from constant value (db0c2e0d64f98fa7 becomes 64f98fa7) [.. many more ..] This patch removes the warning by adding a mask to keep sparse happy. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/kernel.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 500def620d8f..c25b8e41c0ea 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -186,7 +186,7 @@
* lower_32_bits - return bits 0-31 of a number
* @n: the number we're accessing
*/
-#define lower_32_bits(n) ((u32)(n))
+#define lower_32_bits(n) ((u32)((n) & 0xffffffff))
struct completion;
struct pt_regs;