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powerpc/align: Use #ifdef __BIG_ENDIAN__ #else for REG_BYTE

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Sparse complains that it doesn't know what REG_BYTE is:

  arch/powerpc/kernel/align.c:313:29: error: undefined identifier 'REG_BYTE'

REG_BYTE is defined differently based on whether we're compiling for
LE, BE32 or BE64. Sparse apparently doesn't provide __BIG_ENDIAN__ or
__LITTLE_ENDIAN__, which means we get no definition.

Rather than check for __BIG_ENDIAN__ and then separately for
__LITTLE_ENDIAN__, just switch the #ifdef to check for __BIG_ENDIAN__
and then #else we define the little endian version. Technically that's
dicey because PDP_ENDIAN is also a possibility, but we already do it in
a lot of places so one more hardly matters.

Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Daniel Axtens 2016-05-18 11:16:52 +10:00 committed by Michael Ellerman
parent 665e87ffe1
commit a9650e9bc5
1 changed files with 1 additions and 3 deletions
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4
arch/powerpc/kernel/align.c
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@ -228,9 +228,7 @@ static int emulate_dcbz(struct pt_regs *regs, unsigned char __user *addr)
#else
#define REG_BYTE(rp, i) *((u8 *)(rp) + (i))
#endif
#endif
#ifdef __LITTLE_ENDIAN__
#else
#define REG_BYTE(rp, i) (*(((u8 *)((rp) + ((i)>>2)) + ((i)&3))))
#endif