From 52a26d392a45511fb5432c77d99cd3fa93c44e76 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Pali=20Roh=C3=A1r?= Date: Fri, 26 Nov 2021 14:57:05 +0100 Subject: [PATCH] include/linux/byteorder: Fix compilation of __constant_cpu_to_be32() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The macro __constant_cpu_to_be32() uses ___constant_swab32(), which for some reason is not defined and causes the following error during compilation: include/linux/byteorder/little_endian.h:28:52: warning: implicit declaration of function ‘___constant_swab32’; did you mean ‘__builtin_bswap32’? [-Wimplicit-function-declaration] #define __constant_cpu_to_be32(x) ((__force __be32)___constant_swab32((x))) Declare all ___constant_swabXX() macros. Signed-off-by: Pali Rohár Signed-off-by: Marek Behún Reviewed-by: Stefan Roese --- include/linux/byteorder/swab.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/byteorder/swab.h b/include/linux/byteorder/swab.h index 4334fa7..5efc252 100644 --- a/include/linux/byteorder/swab.h +++ b/include/linux/byteorder/swab.h @@ -39,6 +39,10 @@ (__u64)(((__u64)(x) & (__u64)0x00ff000000000000ULL) >> 40) | \ (__u64)(((__u64)(x) & (__u64)0xff00000000000000ULL) >> 56) )) +#define ___constant_swab16(x) ___swab16(x) +#define ___constant_swab32(x) ___swab32(x) +#define ___constant_swab64(x) ___swab64(x) + /* * provide defaults when no architecture-specific optimization is detected */ -- 2.7.4