diff mbox series

[v3,2/2] lib/vsprintf: Declare no_hash_pointers in sprintf.h

Message ID 20230814163344.17429-3-andriy.shevchenko@linux.intel.com (mailing list archive)
State New
Headers show
Series lib/vsprintf: Rework header inclusions | expand

Commit Message

Andy Shevchenko Aug. 14, 2023, 4:33 p.m. UTC 
Sparse is not happy to see non-static variable without declaration:
lib/vsprintf.c:61:6: warning: symbol 'no_hash_pointers' was not declared. Should it be static?

Declare respective variable in the sprintf.h. With this, add a comment
to discourage its use if no real need.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Marco Elver <elver@google.com>
---
 include/linux/sprintf.h | 2 ++
 lib/test_printf.c       | 2 --
 mm/kfence/report.c      | 3 +--
 3 files changed, 3 insertions(+), 4 deletions(-)

Comments

Petr Mladek Aug. 15, 2023, 10:58 a.m. UTC | #1 
On Mon 2023-08-14 19:33:44, Andy Shevchenko wrote:
> Sparse is not happy to see non-static variable without declaration:
> lib/vsprintf.c:61:6: warning: symbol 'no_hash_pointers' was not declared. Should it be static?
> 
> Declare respective variable in the sprintf.h. With this, add a comment
> to discourage its use if no real need.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Acked-by: Marco Elver <elver@google.com>

Reviewed-by: Petr Mladek <pmladek@suse.com>

Best Regards,
Petr
diff mbox series

Patch

diff --git a/include/linux/sprintf.h b/include/linux/sprintf.h
index 9ca23bcf9f42..33dcbec71925 100644
--- a/include/linux/sprintf.h
+++ b/include/linux/sprintf.h
@@ -20,6 +20,8 @@  __printf(2, 0) const char *kvasprintf_const(gfp_t gfp, const char *fmt, va_list
 __scanf(2, 3) int sscanf(const char *, const char *, ...);
 __scanf(2, 0) int vsscanf(const char *, const char *, va_list);
 
+/* These are for specific cases, do not use without real need */
+extern bool no_hash_pointers;
 int no_hash_pointers_enable(char *str);
 
 #endif	/* _LINUX_KERNEL_SPRINTF_H */
diff --git a/lib/test_printf.c b/lib/test_printf.c
index ce749cfac033..69b6a5e177f2 100644
--- a/lib/test_printf.c
+++ b/lib/test_printf.c
@@ -42,8 +42,6 @@  KSTM_MODULE_GLOBALS();
 static char *test_buffer __initdata;
 static char *alloced_buffer __initdata;
 
-extern bool no_hash_pointers;
-
 static int __printf(4, 0) __init
 do_test(int bufsize, const char *expect, int elen,
 	const char *fmt, va_list ap)
diff --git a/mm/kfence/report.c b/mm/kfence/report.c
index 197430a5be4a..c509aed326ce 100644
--- a/mm/kfence/report.c
+++ b/mm/kfence/report.c
@@ -13,6 +13,7 @@ 
 #include <linux/printk.h>
 #include <linux/sched/debug.h>
 #include <linux/seq_file.h>
+#include <linux/sprintf.h>
 #include <linux/stacktrace.h>
 #include <linux/string.h>
 #include <trace/events/error_report.h>
@@ -26,8 +27,6 @@ 
 #define ARCH_FUNC_PREFIX ""
 #endif
 
-extern bool no_hash_pointers;
-
 /* Helper function to either print to a seq_file or to console. */
 __printf(2, 3)
 static void seq_con_printf(struct seq_file *seq, const char *fmt, ...)