linux-kernel - [PATCH v2] tools/perf/util/*.c: Use "%zu" output format for size

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Message-ID: <20200226010818.8639-1-yangx.jy@cn.fujitsu.com>
Date:   Wed, 26 Feb 2020 09:08:18 +0800
From:   Xiao Yang <yangx.jy@...fujitsu.com>
To:     <linux-kernel@...r.kernel.org>
CC:     <peterz@...radead.org>, <mingo@...hat.com>, <acme@...nel.org>,
        <joe@...ches.com>, Xiao Yang <yangx.jy@...fujitsu.com>,
        kernel test robot <lkp@...el.com>
Subject: [PATCH v2] tools/perf/util/*.c: Use "%zu" output format for size_t type

Avoid the following errors when building perf on i386:
-----------------------------------------------
util/session.c: In function 'perf_session__process_compressed_event':
util/session.c:91:11: error: format '%ld' expects argument of type 'long int', but argument 4 has type 'size_t {aka unsigned int}' [-Werror=format=]
  pr_debug("decomp (B): %ld to %ld\n", src_size, decomp_size);
...
til/zstd.c: In function 'zstd_decompress_stream':
util/zstd.c:102:11: error: format '%ld' expects argument of type 'long int', but argument 4 has type 'size_t {aka unsigned int}' [-Werror=format=]
    pr_err("failed to decompress (B): %ld -> %ld, dst_size %ld : %s\n",
...
-----------------------------------------------

Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Xiao Yang <yangx.jy@...fujitsu.com>
---
 tools/perf/util/session.c | 2 +-
 tools/perf/util/zstd.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index d0d7d25b23e3..55c3d2fefd41 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -88,7 +88,7 @@ static int perf_session__process_compressed_event(struct perf_session *session,
 		session->decomp_last = decomp;
 	}
 
-	pr_debug("decomp (B): %ld to %ld\n", src_size, decomp_size);
+	pr_debug("decomp (B): %zu to %zu\n", src_size, decomp_size);
 
 	return 0;
 }
diff --git a/tools/perf/util/zstd.c b/tools/perf/util/zstd.c
index d2202392ffdb..a051237cacf2 100644
--- a/tools/perf/util/zstd.c
+++ b/tools/perf/util/zstd.c
@@ -99,7 +99,7 @@ size_t zstd_decompress_stream(struct zstd_data *data, void *src, size_t src_size
 	while (input.pos < input.size) {
 		ret = ZSTD_decompressStream(data->dstream, &output, &input);
 		if (ZSTD_isError(ret)) {
-			pr_err("failed to decompress (B): %ld -> %ld, dst_size %ld : %s\n",
+			pr_err("failed to decompress (B): %zu -> %zu, dst_size %zu : %s\n",
 			       src_size, output.size, dst_size, ZSTD_getErrorName(ret));
 			break;
 		}
-- 
2.21.0