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Groups > linux.kernel > #1610329

[tip:perf/core] perf auxtrace: Fix no_size logic in addr_filter__resolve_kernel_syms()

From tip-bot for Adrian Hunter <tipbot@zytor.com>
Newsgroups linux.kernel
Subject [tip:perf/core] perf auxtrace: Fix no_size logic in addr_filter__resolve_kernel_syms()
Date 2017-03-28 08:00 +0200
Message-ID <tpSkF-36v-7@gated-at.bofh.it> (permalink)
References <towvV-1tO-21@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Commit-ID:  c3a0bbc7ad7598dec5a204868bdf8a2b1b51df14
Gitweb:     http://git.kernel.org/tip/c3a0bbc7ad7598dec5a204868bdf8a2b1b51df14
Author:     Adrian Hunter <adrian.hunter@intel.com>
AuthorDate: Fri, 24 Mar 2017 14:15:52 +0200
Committer:  Arnaldo Carvalho de Melo <acme@redhat.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@intel.com>
Tested-by: Andi Kleen <ak@linux.intel.com>
Cc: stable@vger.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@redhat.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 */

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[PATCH] perf auxtrace: Fix no_size logic in addr_filter__resolve_kernel_syms() Adrian Hunter <adrian.hunter@intel.com> - 2017-03-24 13:30 +0100
  Re: [PATCH] perf auxtrace: Fix no_size logic in  addr_filter__resolve_kernel_syms() Andi Kleen <ak@linux.intel.com> - 2017-03-25 00:30 +0100
    Re: [PATCH] perf auxtrace: Fix no_size logic in  addr_filter__resolve_kernel_syms() Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-03-25 02:00 +0100
  [tip:perf/core] perf auxtrace: Fix no_size logic in  addr_filter__resolve_kernel_syms() tip-bot for Adrian Hunter <tipbot@zytor.com> - 2017-03-28 08:00 +0200

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