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Message-Id: <20201026161108.3707783-1-arnd@kernel.org>
Date: Mon, 26 Oct 2020 17:10:58 +0100
From: Arnd Bergmann <arnd@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>,
Ingo Molnar <mingo@...hat.com>, Jiri Kosina <jkosina@...e.cz>,
Petr Mladek <pmladek@...e.cz>
Cc: Arnd Bergmann <arnd@...db.de>,
Piotr Maziarz <piotrx.maziarz@...ux.intel.com>,
Cezary Rojewski <cezary.rojewski@...el.com>,
linux-kernel@...r.kernel.org
Subject: [PATCH] seq_buf: avoid type mismatch for seq_buf_init
From: Arnd Bergmann <arnd@...db.de>
Building with W=2 prints a number of warnings for one function that
has a pointer type mismatch:
linux/seq_buf.h: In function 'seq_buf_init':
linux/seq_buf.h:35:12: warning: pointer targets in assignment from 'unsigned char *' to 'char *' differ in signedness [-Wpointer-sign]
Change the type in the function prototype according to the type in
the structure.
Fixes: 9a7777935c34 ("tracing: Convert seq_buf fields to be like seq_file fields")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
include/linux/seq_buf.h | 2 +-
include/linux/trace_seq.h | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
index fb0205d87d3c..9d6c28cc4d8f 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -30,7 +30,7 @@ static inline void seq_buf_clear(struct seq_buf *s)
}
static inline void
-seq_buf_init(struct seq_buf *s, unsigned char *buf, unsigned int size)
+seq_buf_init(struct seq_buf *s, char *buf, unsigned int size)
{
s->buffer = buf;
s->size = size;
diff --git a/include/linux/trace_seq.h b/include/linux/trace_seq.h
index 6c30508fca19..5a2c650d9e1c 100644
--- a/include/linux/trace_seq.h
+++ b/include/linux/trace_seq.h
@@ -12,7 +12,7 @@
*/
struct trace_seq {
- unsigned char buffer[PAGE_SIZE];
+ char buffer[PAGE_SIZE];
struct seq_buf seq;
int full;
};
@@ -51,7 +51,7 @@ static inline int trace_seq_used(struct trace_seq *s)
* that is about to be written to and then return the result
* of that write.
*/
-static inline unsigned char *
+static inline char *
trace_seq_buffer_ptr(struct trace_seq *s)
{
return s->buffer + seq_buf_used(&s->seq);
--
2.27.0
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