[PATCH v1 2/6] seq_file: Mark binary printing functions with __printf() attribute

Andy Shevchenko
2025-03-20T18:09:33Z

Binary printing functions are using printf() type of format, and compiler
is not happy about them as is:

fs/seq_file.c:418:35: error: function ‘seq_bprintf’ might be a candidate for ‘gnu_printf’ format attribute [-Werror=suggest-attribute=format]

Fix the compilation errors by adding __printf() attribute.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
include/linux/seq_file.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 2fb266ea69fa..d6ebf0596510 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -181,6 +181,7 @@ int seq_open_private(struct file *, const struct seq_operations *, int);
int seq_release_private(struct inode *, struct file *);

#ifdef CONFIG_BINARY_PRINTF
+__printf(2, 0)
void seq_bprintf(struct seq_file *m, const char *f, const u32 *binary);
#endif

--
2.47.2