[PATCH] powerpc: define __LITTLE_ENDIAN and __BIG_ENDIAN for math-emu
From: Mingcong Bai <jeffbai@aosc.io>
Date: 2026-05-17 04:14:53
Also in:
lkml, stable
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Similar to commit b929926f01f2 ("sh: define __BIG_ENDIAN for math-emu"),
define __LITTLE_ENDIAN and __BIG_ENDIAN as 0 to mitigate build-time
warnings:
./include/math-emu/double.h:59:21: error: ‘__BIG_ENDIAN’ is not defined, evaluates to ‘0’ [-Werror=undef]
59 | #if __BYTE_ORDER == __BIG_ENDIAN
|
Cc: stable@vger.kernel.org
Fixes: 13da9e200fe4 ("Revert "endian: #define __BYTE_ORDER"")
Reported-by: kernel test robot <redacted>
Closes: https://lore.kernel.org/oe-kbuild-all/202507301656.7FEX6J5W-lkp@intel.com/ (local)
Signed-off-by: Mingcong Bai <jeffbai@aosc.io>
---
arch/powerpc/include/asm/sfp-machine.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/sfp-machine.h b/arch/powerpc/include/asm/sfp-machine.h
index 8b957aabb826d..db8525605c026 100644
--- a/arch/powerpc/include/asm/sfp-machine.h
+++ b/arch/powerpc/include/asm/sfp-machine.h@@ -319,10 +319,12 @@ #define abort() \ return 0 -#ifdef __BIG_ENDIAN +#ifdef __BIG_ENDIAN__ #define __BYTE_ORDER __BIG_ENDIAN +#define __LITTLE_ENDIAN 0 #else #define __BYTE_ORDER __LITTLE_ENDIAN +#define __BIG_ENDIAN 0 #endif /* Exception flags. */
--
2.52.0