Commit b4c80629 authored by Heinrich Schuchardt's avatar Heinrich Schuchardt Committed by Greg Kroah-Hartman
Browse files

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: default avatarHeinrich Schuchardt <xypron.glpk@gmx.de>
Link: https://lore.kernel.org/r/20210523204958.64575-1-xypron.glpk@gmx.de


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f4d77525

include/linux/byteorder/generic.h

+2 −2
Original line number Diff line number Diff line
@@ -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]);