print_symbol() uses extra stack space to sprintf() symbol
information and then to feed that buffer to printk()
char buffer[KSYM_SYMBOL_LEN];
sprint_symbol(buffer, address);
printk(fmt, buffer);
Replace print_symbol() with a direct printk("%pS") call.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky at gmail.com>
Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
---
fs/sysfs/file.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 39c75a86c67f..bfcbe486d385 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -12,7 +12,6 @@
#include <linux/module.h>
#include <linux/kobject.h>
-#include <linux/kallsyms.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/mutex.h>
@@ -70,8 +69,8 @@ static int sysfs_kf_seq_show(struct seq_file *sf, void *v)
* indicate truncated result or overflow in normal use cases.
*/
if (count >= (ssize_t)PAGE_SIZE) {
- print_symbol("fill_read_buffer: %s returned bad count\n",
- (unsigned long)ops->show);
+ printk("fill_read_buffer: %pS returned bad count\n",
+ ops->show);
/* Try to struggle along */
count = PAGE_SIZE - 1;
}
--
2.15.1
