perf/x86/intel/pt: Kill an unused variable

Currently, there's a set-but-not-used variable in setup_topa_index();
this patch gets rid of it. And while at it, fixes a style issue with
brackets around a one-line block.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: acme@infradead.org
Cc: adrian.hunter@intel.com
Cc: hpa@zytor.com
Link: http://lkml.kernel.org/r/1429622177-22843-2-git-send-email-alexander.shishkin@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/kernel/cpu/perf_event_intel_pt.c b/arch/x86/kernel/cpu/perf_event_intel_pt.c
index 5b804f9..8a45956 100644 (file)
--- a/arch/x86/kernel/cpu/perf_event_intel_pt.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_pt.c
@@ -674,7 +674,7 @@ static void pt_buffer_setup_topa_index(struct pt_buffer *buf)
        struct topa *cur = buf->first, *prev = buf->last;
        struct topa_entry *te_cur = TOPA_ENTRY(cur, 0),
                *te_prev = TOPA_ENTRY(prev, prev->last - 1);
-       int pg = 0, idx = 0, ntopa = 0;
+       int pg = 0, idx = 0;
 
        while (pg < buf->nr_pages) {
                int tidx;
@@ -689,9 +689,9 @@ static void pt_buffer_setup_topa_index(struct pt_buffer *buf)
                        /* advance to next topa table */
                        idx = 0;
                        cur = list_entry(cur->list.next, struct topa, list);
-                       ntopa++;
-               } else
+               } else {
                        idx++;
+               }
                te_cur = TOPA_ENTRY(cur, idx);
        }