2019-05-20 09:28:19

by Daniel Vetter

[permalink] [raw]
Subject: [PATCH 21/33] fbdev: directly call fbcon_suspended/resumed

With the sh_mobile notifier removed we can just directly call the
fbcon code here.

v2: Remove now unused local variable.

Signed-off-by: Daniel Vetter <[email protected]>
Cc: Bartlomiej Zolnierkiewicz <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: Hans de Goede <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Prarit Bhargava <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Konstantin Khorenko <[email protected]>
Cc: Yisheng Xie <[email protected]>
Cc: "Michał Mirosław" <[email protected]>
Cc: Peter Rosin <[email protected]>
Cc: Mikulas Patocka <[email protected]>
Cc: [email protected]
---
drivers/video/fbdev/core/fbcon.c | 10 ++--------
drivers/video/fbdev/core/fbmem.c | 7 ++-----
include/linux/fb.h | 8 --------
include/linux/fbcon.h | 4 ++++
4 files changed, 8 insertions(+), 21 deletions(-)

diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index a8d12914b559..b056d1190788 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -2915,7 +2915,7 @@ static int fbcon_set_origin(struct vc_data *vc)
return 0;
}

-static void fbcon_suspended(struct fb_info *info)
+void fbcon_suspended(struct fb_info *info)
{
struct vc_data *vc = NULL;
struct fbcon_ops *ops = info->fbcon_par;
@@ -2928,7 +2928,7 @@ static void fbcon_suspended(struct fb_info *info)
fbcon_cursor(vc, CM_ERASE);
}

-static void fbcon_resumed(struct fb_info *info)
+void fbcon_resumed(struct fb_info *info)
{
struct vc_data *vc;
struct fbcon_ops *ops = info->fbcon_par;
@@ -3326,12 +3326,6 @@ static int fbcon_event_notify(struct notifier_block *self,
int idx, ret = 0;

switch(action) {
- case FB_EVENT_SUSPEND:
- fbcon_suspended(info);
- break;
- case FB_EVENT_RESUME:
- fbcon_resumed(info);
- break;
case FB_EVENT_MODE_CHANGE:
fbcon_modechanged(info);
break;
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index f059b0b1a030..7c55846ee5fc 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1881,17 +1881,14 @@ EXPORT_SYMBOL(unregister_framebuffer);
*/
void fb_set_suspend(struct fb_info *info, int state)
{
- struct fb_event event;
-
WARN_CONSOLE_UNLOCKED();

- event.info = info;
if (state) {
- fb_notifier_call_chain(FB_EVENT_SUSPEND, &event);
+ fbcon_suspended(info);
info->state = FBINFO_STATE_SUSPENDED;
} else {
info->state = FBINFO_STATE_RUNNING;
- fb_notifier_call_chain(FB_EVENT_RESUME, &event);
+ fbcon_resumed(info);
}
}
EXPORT_SYMBOL(fb_set_suspend);
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 44021e55b15c..a78bbd372cfd 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -126,14 +126,6 @@ struct fb_cursor_user {

/* The resolution of the passed in fb_info about to change */
#define FB_EVENT_MODE_CHANGE 0x01
-/* The display on this fb_info is being suspended, no access to the
- * framebuffer is allowed any more after that call returns
- */
-#define FB_EVENT_SUSPEND 0x02
-/* The display on this fb_info was resumed, you can restore the display
- * if you own it
- */
-#define FB_EVENT_RESUME 0x03
/* An entry from the modelist was removed */
#define FB_EVENT_MODE_DELETE 0x04
/* CONSOLE-SPECIFIC: get console to framebuffer mapping */
diff --git a/include/linux/fbcon.h b/include/linux/fbcon.h
index 38d44fdb6d14..61a22e6c0c64 100644
--- a/include/linux/fbcon.h
+++ b/include/linux/fbcon.h
@@ -7,12 +7,16 @@ void __exit fb_console_exit(void);
int fbcon_fb_registered(struct fb_info *info);
void fbcon_fb_unregistered(struct fb_info *info);
void fbcon_fb_unbind(struct fb_info *info);
+void fbcon_suspended(struct fb_info *info);
+void fbcon_resumed(struct fb_info *info);
#else
static inline void fb_console_init(void) {}
static inline void fb_console_exit(void) {}
static inline int fbcon_fb_registered(struct fb_info *info) { return 0; }
static inline void fbcon_fb_unregistered(struct fb_info *info) {}
static inline void fbcon_fb_unbind(struct fb_info *info) {}
+static inline void fbcon_suspended(void) {}
+static inline void fbcon_resumed(void) {}
#endif

#endif /* _LINUX_FBCON_H */
--
2.20.1



2019-05-20 19:26:46

by kernel test robot

[permalink] [raw]
Subject: Re: [PATCH 21/33] fbdev: directly call fbcon_suspended/resumed

Hi Daniel,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.2-rc1 next-20190520]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Daniel-Vetter/fbcon-notifier-begone/20190521-021841
config: x86_64-randconfig-x006-201920 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <[email protected]>

All errors (new ones prefixed by >>):

drivers/video/fbdev/core/fbmem.c: In function 'fb_set_suspend':
>> drivers/video/fbdev/core/fbmem.c:1908:3: error: too many arguments to function 'fbcon_suspended'
fbcon_suspended(info);
^~~~~~~~~~~~~~~
In file included from drivers/video/fbdev/core/fbmem.c:35:0:
include/linux/fbcon.h:18:20: note: declared here
static inline void fbcon_suspended(void) {}
^~~~~~~~~~~~~~~
>> drivers/video/fbdev/core/fbmem.c:1912:3: error: too many arguments to function 'fbcon_resumed'
fbcon_resumed(info);
^~~~~~~~~~~~~
In file included from drivers/video/fbdev/core/fbmem.c:35:0:
include/linux/fbcon.h:19:20: note: declared here
static inline void fbcon_resumed(void) {}
^~~~~~~~~~~~~

vim +/fbcon_suspended +1908 drivers/video/fbdev/core/fbmem.c

1893
1894 /**
1895 * fb_set_suspend - low level driver signals suspend
1896 * @info: framebuffer affected
1897 * @state: 0 = resuming, !=0 = suspending
1898 *
1899 * This is meant to be used by low level drivers to
1900 * signal suspend/resume to the core & clients.
1901 * It must be called with the console semaphore held
1902 */
1903 void fb_set_suspend(struct fb_info *info, int state)
1904 {
1905 WARN_CONSOLE_UNLOCKED();
1906
1907 if (state) {
> 1908 fbcon_suspended(info);
1909 info->state = FBINFO_STATE_SUSPENDED;
1910 } else {
1911 info->state = FBINFO_STATE_RUNNING;
> 1912 fbcon_resumed(info);
1913 }
1914 }
1915 EXPORT_SYMBOL(fb_set_suspend);
1916

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation


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