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drm: drm_printer: add __printf validation

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drm_printf does not currently use the compiler to verify
format and arguments.  Make it do so.

Miscellanea:

o Add appropriate #include files for __printf and struct va_format
o Convert dev_printk to dev_info

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/133858f214e9b90f92bb8eb44c6b1dc04429933d.1487201526.git.joe@perches.com
This commit is contained in:
Joe Perches 2017-02-15 15:33:18 -08:00 committed by Daniel Vetter
parent 8e22e1b349
commit 3c6d6e0fbf
2 changed files with 4 additions and 1 deletions
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2
drivers/gpu/drm/drm_print.c
View File

@ -36,7 +36,7 @@ EXPORT_SYMBOL(__drm_printfn_seq_file);
void __drm_printfn_info(struct drm_printer *p, struct va_format *vaf)
{
dev_printk(KERN_INFO, p->arg, "[" DRM_NAME "] %pV", vaf);
dev_info(p->arg, "[" DRM_NAME "] %pV", vaf);
}
EXPORT_SYMBOL(__drm_printfn_info);

3
include/drm/drm_print.h
View File

@ -26,6 +26,8 @@
#ifndef DRM_PRINT_H_
#define DRM_PRINT_H_
#include <linux/compiler.h>
#include <linux/printk.h>
#include <linux/seq_file.h>
#include <linux/device.h>
@ -75,6 +77,7 @@ void __drm_printfn_seq_file(struct drm_printer *p, struct va_format *vaf);
void __drm_printfn_info(struct drm_printer *p, struct va_format *vaf);
void __drm_printfn_debug(struct drm_printer *p, struct va_format *vaf);
__printf(2, 3)
void drm_printf(struct drm_printer *p, const char *f, ...);