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parisc: Define CONFIG_CPU_BIG_ENDIAN 

While working on enabling queued rwlock on SPARC, found this following
code in include/asm-generic/qrwlock.h which uses CONFIG_CPU_BIG_ENDIAN
to clear a byte.

static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
 {
	return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
 }

Problem is many of the fixed big endian architectures don't define
CPU_BIG_ENDIAN and clears the wrong byte.

Define CPU_BIG_ENDIAN for parisc architecture to fix it.

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Signed-off-by: Helge Deller <deller@gmx.de>
zero-colors
Babu Moger 2017-07-06 09:34:19 -07:00 committed by Helge Deller
parent 93964fd4ea
commit 74ad3d28af
1 changed files with 3 additions and 0 deletions
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arch/parisc/Kconfig
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@ -47,6 +47,9 @@ config PARISC
and later HP3000 series). The PA-RISC Linux project home page is
at <http://www.parisc-linux.org/>.
config CPU_BIG_ENDIAN
def_bool y
config MMU
def_bool y