linux-kernel - [tip: perf/urgent] perf diff: Use llabs() with 64-bit values

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Message-ID: <157500737098.21853.13122214149694655713.tip-bot2@tip-bot2>
Date:   Fri, 29 Nov 2019 06:02:50 -0000
From:   "tip-bot2 for Arnaldo Carvalho de Melo" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Jin Yao <yao.jin@...ux.intel.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        x86 <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org>
Subject: [tip: perf/urgent] perf diff: Use llabs() with 64-bit values

The following commit has been merged into the perf/urgent branch of tip:

Commit-ID:     98e93245113d0f5c279ef77f4a9e7d097323ad71
Gitweb:        https://git.kernel.org/tip/98e93245113d0f5c279ef77f4a9e7d097323ad71
Author:        Arnaldo Carvalho de Melo <acme@...hat.com>
AuthorDate:    Wed, 27 Nov 2019 09:58:22 -03:00
Committer:     Arnaldo Carvalho de Melo <acme@...hat.com>
CommitterDate: Thu, 28 Nov 2019 08:08:37 -03:00

perf diff: Use llabs() with 64-bit values

To fix these build errors on a debian mipsel cross build environment:

  builtin-diff.c: In function 'block_cycles_diff_cmp':
  builtin-diff.c:550:6: error: absolute value function 'labs' given an argument of type 's64' {aka 'long long int'} but has parameter of type 'long int' which may cause truncation of value [-Werror=absolute-value]
    550 |  l = labs(left->diff.cycles);
        |      ^~~~
  builtin-diff.c:551:6: error: absolute value function 'labs' given an argument of type 's64' {aka 'long long int'} but has parameter of type 'long int' which may cause truncation of value [-Werror=absolute-value]
    551 |  r = labs(right->diff.cycles);
        |      ^~~~

Fixes: 99150a1faab2 ("perf diff: Use hists to manage basic blocks per symbol")
Cc: Jin Yao <yao.jin@...ux.intel.com>
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Link: https://lkml.kernel.org/n/tip-pn7szy5uw384ntjgk6zckh6a@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-diff.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 376dbf1..eae8793 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -547,8 +547,8 @@ static int64_t block_cycles_diff_cmp(struct hist_entry *left,
 	if (!pairs_left && !pairs_right)
 		return 0;
 
-	l = labs(left->diff.cycles);
-	r = labs(right->diff.cycles);
+	l = llabs(left->diff.cycles);
+	r = llabs(right->diff.cycles);
 	return r - l;
 }