linux-kernel - [tip:perf/core] perf auxtrace: Fix no_size logic in addr_filter__resolve_kernel

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Date:   Mon, 27 Mar 2017 22:50:40 -0700
From:   tip-bot for Adrian Hunter <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     tglx@...utronix.de, acme@...hat.com, adrian.hunter@...el.com,
        mingo@...nel.org, linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        hpa@...or.com
Subject: [tip:perf/core] perf auxtrace: Fix no_size logic in
 addr_filter__resolve_kernel_syms()

Commit-ID:  c3a0bbc7ad7598dec5a204868bdf8a2b1b51df14
Gitweb:     http://git.kernel.org/tip/c3a0bbc7ad7598dec5a204868bdf8a2b1b51df14
Author:     Adrian Hunter <adrian.hunter@...el.com>
AuthorDate: Fri, 24 Mar 2017 14:15:52 +0200
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 27 Mar 2017 11:58:08 -0300

perf auxtrace: Fix no_size logic in addr_filter__resolve_kernel_syms()

Address filtering with kernel symbols incorrectly resulted in the error
"Cannot determine size of symbol" because the no_size logic was the wrong
way around.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
Tested-by: Andi Kleen <ak@...ux.intel.com>
Cc: stable@...r.kernel.org # v4.9+
Link: http://lkml.kernel.org/r/1490357752-27942-1-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/auxtrace.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index c5a6e0b1..78bd632 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -1826,7 +1826,7 @@ static int addr_filter__resolve_kernel_syms(struct addr_filter *filt)
 		filt->addr = start;
 		if (filt->range && !filt->size && !filt->sym_to) {
 			filt->size = size;
-			no_size = !!size;
+			no_size = !size;
 		}
 	}
 
@@ -1840,7 +1840,7 @@ static int addr_filter__resolve_kernel_syms(struct addr_filter *filt)
 		if (err)
 			return err;
 		filt->size = start + size - filt->addr;
-		no_size = !!size;
+		no_size = !size;
 	}
 
 	/* The very last symbol in kallsyms does not imply a particular size */