From b14b70a6a4e394c9630bcde17e07d3bcdcbca27e Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Fri, 27 Mar 2009 10:21:00 +0800 Subject: [PATCH] trace: make argument 'mem' of trace_seq_putmem() const Impact: fix build warning I passed a const value to trace_seq_putmem(), and I got compile warning. Signed-off-by: Li Zefan Acked-by: Jens Axboe Cc: Arnaldo Carvalho de Melo Cc: Steven Rostedt Cc: Frederic Weisbecker Signed-off-by: Ingo Molnar --- kernel/trace/trace_output.c | 6 +++--- kernel/trace/trace_output.h | 5 +++-- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index 6595074cbac..d72b9a63b24 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -137,7 +137,7 @@ int trace_seq_putc(struct trace_seq *s, unsigned char c) return 1; } -int trace_seq_putmem(struct trace_seq *s, void *mem, size_t len) +int trace_seq_putmem(struct trace_seq *s, const void *mem, size_t len) { if (len > ((PAGE_SIZE - 1) - s->len)) return 0; @@ -148,10 +148,10 @@ int trace_seq_putmem(struct trace_seq *s, void *mem, size_t len) return len; } -int trace_seq_putmem_hex(struct trace_seq *s, void *mem, size_t len) +int trace_seq_putmem_hex(struct trace_seq *s, const void *mem, size_t len) { unsigned char hex[HEX_CHARS]; - unsigned char *data = mem; + const unsigned char *data = mem; int i, j; #ifdef __BIG_ENDIAN diff --git a/kernel/trace/trace_output.h b/kernel/trace/trace_output.h index 46fb9612d88..e0bde39c2dd 100644 --- a/kernel/trace/trace_output.h +++ b/kernel/trace/trace_output.h @@ -31,8 +31,9 @@ extern ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf, size_t cnt); extern int trace_seq_puts(struct trace_seq *s, const char *str); extern int trace_seq_putc(struct trace_seq *s, unsigned char c); -extern int trace_seq_putmem(struct trace_seq *s, void *mem, size_t len); -extern int trace_seq_putmem_hex(struct trace_seq *s, void *mem, size_t len); +extern int trace_seq_putmem(struct trace_seq *s, const void *mem, size_t len); +extern int trace_seq_putmem_hex(struct trace_seq *s, const void *mem, + size_t len); extern void *trace_seq_reserve(struct trace_seq *s, size_t len); extern int trace_seq_path(struct trace_seq *s, struct path *path); extern int seq_print_userip_objs(const struct userstack_entry *entry, -- 2.41.1