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author | Chris Metcalf <cmetcalf@tilera.com> | 2012-03-29 17:30:31 (GMT) |
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committer | Chris Metcalf <cmetcalf@tilera.com> | 2012-05-25 16:48:22 (GMT) |
commit | 1efea40d4172a2a475ccb29b59d6221e9d0c174b (patch) | |
tree | 8152b61bb3fa83eb3403bca5cb05731c1063e999 /arch/tile/lib/memchr_64.c | |
parent | 73636b1aacb1a07e6fbe0d25e560e69b024a8e25 (diff) | |
download | linux-fsl-qoriq-1efea40d4172a2a475ccb29b59d6221e9d0c174b.tar.xz |
arch/tile: support building big-endian kernel
The toolchain supports big-endian mode now, so add support for building
the kernel to run big-endian as well.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/lib/memchr_64.c')
-rw-r--r-- | arch/tile/lib/memchr_64.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/tile/lib/memchr_64.c b/arch/tile/lib/memchr_64.c index 84fdc8d..6f867db 100644 --- a/arch/tile/lib/memchr_64.c +++ b/arch/tile/lib/memchr_64.c @@ -15,6 +15,7 @@ #include <linux/types.h> #include <linux/string.h> #include <linux/module.h> +#include "string-endian.h" void *memchr(const void *s, int c, size_t n) { @@ -39,11 +40,8 @@ void *memchr(const void *s, int c, size_t n) /* Read the first word, but munge it so that bytes before the array * will not match goal. - * - * Note that this shift count expression works because we know - * shift counts are taken mod 64. */ - before_mask = (1ULL << (s_int << 3)) - 1; + before_mask = MASK(s_int); v = (*p | before_mask) ^ (goal & before_mask); /* Compute the address of the last byte. */ @@ -65,7 +63,7 @@ void *memchr(const void *s, int c, size_t n) /* We found a match, but it might be in a byte past the end * of the array. */ - ret = ((char *)p) + (__insn_ctz(bits) >> 3); + ret = ((char *)p) + (CFZ(bits) >> 3); return (ret <= last_byte_ptr) ? ret : NULL; } EXPORT_SYMBOL(memchr); |