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From: Steven Rostedt <rostedt@goodmis.org>
To: Linux Trace Devel <linux-trace-devel@vger.kernel.org>
Cc: Sven Schnelle <svens@linux.ibm.com>,
	Tzvetomir Stoyanov <tz.stoyanov@gmail.com>,
	linux-s390@vger.kernel.org
Subject: [PATCH] trace-cmd: Fix writing of uncompressed size
Date: Mon, 11 Jul 2022 14:21:04 -0400	[thread overview]
Message-ID: <20220711142104.090b9030@gandalf.local.home> (raw)

From: Sven Schnelle <svens@linux.ibm.com>

pointer in struct tracecmd_compression is 'unsigned long', which is 8 byte
in size on most platforms, but the tep_read_number() call in the next line
treats it as a 4 byte value. As there's no need for unsigned long change
the type to unsigned int.

Link: https://lore.kernel.org/all/20220711074418.858843-1-svens@linux.ibm.com/
Link: https://lore.kernel.org/all/20220711094340.2829115-1-svens@linux.ibm.com/

Fixes: 3f8447b1 ("trace-cmd library: Add support for compression algorithms")
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
 lib/trace-cmd/trace-compress.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/trace-cmd/trace-compress.c b/lib/trace-cmd/trace-compress.c
index a63295e..461de8d 100644
--- a/lib/trace-cmd/trace-compress.c
+++ b/lib/trace-cmd/trace-compress.c
@@ -32,7 +32,7 @@ struct tracecmd_compression {
 	int				fd;
 	unsigned int			capacity;
 	unsigned int			capacity_read;
-	unsigned long			pointer;
+	unsigned int			pointer;
 	char				*buffer;
 	struct compress_proto		*proto;
 	struct tep_handle		*tep;
-- 
2.36.1

                 reply	other threads:[~2022-07-11 18:21 UTC|newest]

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