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authorHeinrich Schuchardt <xypron.glpk@gmx.de>2021-05-23 22:49:57 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-11-26 16:19:19 +0100
commitb4c80629c5c9d48880c5ad99943374f9ab72432e (patch)
treec5352d2b2422f56257ec3676b72017d0271d2ec9 /include/linux/byteorder
parentf4d77525679e289d4976ca03b620ac4cc5403205 (diff)
include/linux/byteorder/generic.h: fix index variables
In cpu_to_be32_array() and be32_to_cpu_array() the length of the array is given by variable len of type size_t. An index variable of type int is used to iterate over the array. This is bound to fail for len > INT_MAX and lets GCC add instructions for sign extension. Correct the type of the index variable. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Link: https://lore.kernel.org/r/20210523204958.64575-1-xypron.glpk@gmx.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/byteorder')
-rw-r--r--include/linux/byteorder/generic.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/byteorder/generic.h b/include/linux/byteorder/generic.h
index 4b13e0a3e15b..c9a4c96c9943 100644
--- a/include/linux/byteorder/generic.h
+++ b/include/linux/byteorder/generic.h
@@ -190,7 +190,7 @@ static inline void be64_add_cpu(__be64 *var, u64 val)
static inline void cpu_to_be32_array(__be32 *dst, const u32 *src, size_t len)
{
- int i;
+ size_t i;
for (i = 0; i < len; i++)
dst[i] = cpu_to_be32(src[i]);
@@ -198,7 +198,7 @@ static inline void cpu_to_be32_array(__be32 *dst, const u32 *src, size_t len)
static inline void be32_to_cpu_array(u32 *dst, const __be32 *src, size_t len)
{
- int i;
+ size_t i;
for (i = 0; i < len; i++)
dst[i] = be32_to_cpu(src[i]);