提交 0f61f3e4 编写于 作者: F Frederic Weisbecker 提交者: Ingo Molnar

perf tools: Fix sample type size calculation in 32 bits archs

The shift used here to count the number of bits set in
the mask doesn't work above the low part for archs that
are not 64 bits.

Fix the constant used for the shift.

This fixes a 32-bit perf top failure reported by Eric Dumazet:

	Can't parse sample, err = -14
	Can't parse sample, err = -14
	...
Reported-and-tested-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Stephane Eranian <eranian@google.com
Link: http://lkml.kernel.org/r/1306200686-17317-1-git-send-email-fweisbec@gmail.comSigned-off-by: NIngo Molnar <mingo@elte.hu>
上级 8ce26169
......@@ -42,7 +42,7 @@ int perf_sample_size(u64 sample_type)
int i;
for (i = 0; i < 64; i++) {
if (mask & (1UL << i))
if (mask & (1ULL << i))
size++;
}
......
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