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seq_buf: Avoid type mismatch for seq_buf_init 

[ Upstream commit d9a9280a0d0ae51dc1d4142138b99242b7ec8ac6 ]

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.

Link: https://lkml.kernel.org/r/20201026161108.3707783-1-arnd@kernel.org

Fixes: 9a7777935c ("tracing: Convert seq_buf fields to be like seq_file fields")
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Arnd Bergmann 2020-10-26 17:10:58 +01:00 committed by Greg Kroah-Hartman
parent 0b93626d39
commit 0e724f2e80
2 changed files with 3 additions and 3 deletions
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2
include/linux/seq_buf.h
View File

@ -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;

4
include/linux/trace_seq.h
View File

@ -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);