MIPS: c-r4k: Fix GCC 4.6.0 build error

  CC      arch/mips/mm/c-r4k.o
arch/mips/mm/c-r4k.c: In function 'probe_scache':
arch/mips/mm/c-r4k.c:1078:6: error: variable 'tmp' set but not used [-Werror=unused-but-set-variable]
cc1: all warnings being treated as errors

Older GCC versions didn't warn about the unused variable tmp because it was
getting initialized.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index b4923a7..71bddf8 100644 (file)
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1075,7 +1075,6 @@ static int __cpuinit probe_scache(void)
        unsigned long flags, addr, begin, end, pow2;
        unsigned int config = read_c0_config();
        struct cpuinfo_mips *c = &current_cpu_data;
-       int tmp;
 
        if (config & CONF_SC)
                return 0;
@@ -1108,7 +1107,6 @@ static int __cpuinit probe_scache(void)
 
        /* Now search for the wrap around point. */
        pow2 = (128 * 1024);
-       tmp = 0;
        for (addr = begin + (128 * 1024); addr < end; addr = begin + pow2) {
                cache_op(Index_Load_Tag_SD, addr);
                __asm__ __volatile__("nop; nop; nop; nop;"); /* hazard... */