From: Arnd Bergmann <a...@arndb.de>

[ 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-a...@kernel.org

Fixes: 9a7777935c34 ("tracing: Convert seq_buf fields to be like seq_file 
fields")
Reviewed-by: Cezary Rojewski <cezary.rojew...@intel.com>
Signed-off-by: Arnd Bergmann <a...@arndb.de>
Signed-off-by: Steven Rostedt (VMware) <rost...@goodmis.org>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 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 fb7eb9ccb1cd4..d4c3c9bab5826 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -29,7 +29,7 @@ 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 cfaf5a1d4bad7..f5be2716b01c6 100644
--- a/include/linux/trace_seq.h
+++ b/include/linux/trace_seq.h
@@ -11,7 +11,7 @@
  */
 
 struct trace_seq {
-       unsigned char           buffer[PAGE_SIZE];
+       char                    buffer[PAGE_SIZE];
        struct seq_buf          seq;
        int                     full;
 };
@@ -50,7 +50,7 @@ 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



Reply via email to