On 11/3/21 03:02, Marek Behún wrote:
From: Pali Rohár pali@kernel.org
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 pali@kernel.org Signed-off-by: Marek Behún marek.behun@nic.cz
Reviewed-by: Stefan Roese sr@denx.de
Thanks, Stefan
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 4334fa77e3..5efc252acf 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
Viele Grüße, Stefan Roese