diff options
| author | Helge Deller <deller@gmx.de> | 2017-01-28 11:52:02 +0100 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-07-04 11:51:30 +0200 |
| commit | 0f90c5f2143a4b139c20b1be975e5d546e7eecb8 (patch) | |
| tree | 142f828a8229ab19a76a74991c44119395fe340e /arch/parisc/include/uapi | |
| parent | 0d579bbb5bc024776de5e0c7e9f2081b09e4786c (diff) | |
parisc: Don't use BITS_PER_LONG in userspace-exported swab.h header
commit 2ad5d52d42810bed95100a3d912679d8864421ec upstream.
In swab.h the "#if BITS_PER_LONG > 32" breaks compiling userspace programs if
BITS_PER_LONG is #defined by userspace with the sizeof() compiler builtin.
Solve this problem by using __BITS_PER_LONG instead. Since we now
#include asm/bitsperlong.h avoid further potential userspace pollution
by moving the #define of SHIFT_PER_LONG to bitops.h which is not
exported to userspace.
This patch unbreaks compiling qemu on hppa/parisc.
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'arch/parisc/include/uapi')
| -rw-r--r-- | arch/parisc/include/uapi/asm/bitsperlong.h | 2 | ||||
| -rw-r--r-- | arch/parisc/include/uapi/asm/swab.h | 5 |
2 files changed, 3 insertions, 4 deletions
diff --git a/arch/parisc/include/uapi/asm/bitsperlong.h b/arch/parisc/include/uapi/asm/bitsperlong.h index 75196b415..540c94de4 100644 --- a/arch/parisc/include/uapi/asm/bitsperlong.h +++ b/arch/parisc/include/uapi/asm/bitsperlong.h @@ -9,10 +9,8 @@ */ #if (defined(__KERNEL__) && defined(CONFIG_64BIT)) || defined (__LP64__) #define __BITS_PER_LONG 64 -#define SHIFT_PER_LONG 6 #else #define __BITS_PER_LONG 32 -#define SHIFT_PER_LONG 5 #endif #include <asm-generic/bitsperlong.h> diff --git a/arch/parisc/include/uapi/asm/swab.h b/arch/parisc/include/uapi/asm/swab.h index e78403b12..928e1bbac 100644 --- a/arch/parisc/include/uapi/asm/swab.h +++ b/arch/parisc/include/uapi/asm/swab.h @@ -1,6 +1,7 @@ #ifndef _PARISC_SWAB_H #define _PARISC_SWAB_H +#include <asm/bitsperlong.h> #include <linux/types.h> #include <linux/compiler.h> @@ -38,7 +39,7 @@ static inline __attribute_const__ __u32 __arch_swab32(__u32 x) } #define __arch_swab32 __arch_swab32 -#if BITS_PER_LONG > 32 +#if __BITS_PER_LONG > 32 /* ** From "PA-RISC 2.0 Architecture", HP Professional Books. ** See Appendix I page 8 , "Endian Byte Swapping". @@ -61,6 +62,6 @@ static inline __attribute_const__ __u64 __arch_swab64(__u64 x) return x; } #define __arch_swab64 __arch_swab64 -#endif /* BITS_PER_LONG > 32 */ +#endif /* __BITS_PER_LONG > 32 */ #endif /* _PARISC_SWAB_H */ |