Well except when the olpc dcon fbdev driver is enabled, that thing digs around in there in rather unfixable ways.
Cc oldc_dcon maintainers as fyi.
v2: I typoed the config name (0day)
Cc: kernel test robot lkp@intel.com Cc: Jens Frederich jfrederich@gmail.com Cc: Jon Nettleton jon.nettleton@gmail.com Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Cc: linux-staging@lists.linux.dev Signed-off-by: Daniel Vetter daniel.vetter@intel.com Cc: Daniel Vetter daniel@ffwll.ch Cc: Helge Deller deller@gmx.de Cc: Matthew Wilcox willy@infradead.org Cc: Sam Ravnborg sam@ravnborg.org Cc: Tetsuo Handa penguin-kernel@i-love.sakura.ne.jp Cc: Zhen Lei thunder.leizhen@huawei.com Cc: Alex Deucher alexander.deucher@amd.com Cc: Xiyu Yang xiyuyang19@fudan.edu.cn Cc: linux-fbdev@vger.kernel.org Cc: Zheyu Ma zheyuma97@gmail.com Cc: Guenter Roeck linux@roeck-us.net --- drivers/video/fbdev/core/fbmem.c | 8 ++++++-- include/linux/fb.h | 7 +++---- 2 files changed, 9 insertions(+), 6 deletions(-)
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index 6f6f7a763969..6f0eb596a2cd 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -49,10 +49,14 @@ static DEFINE_MUTEX(registration_lock);
struct fb_info *registered_fb[FB_MAX] __read_mostly; -EXPORT_SYMBOL(registered_fb); - int num_registered_fb __read_mostly; +#if IS_ENABLED(CONFIG_FB_OLPC_DCON) +EXPORT_SYMBOL(registered_fb); EXPORT_SYMBOL(num_registered_fb); +#endif +#define for_each_registered_fb(i) \ + for (i = 0; i < FB_MAX; i++) \ + if (!registered_fb[i]) {} else
bool fb_center_logo __read_mostly;
diff --git a/include/linux/fb.h b/include/linux/fb.h index 23b19cf8bccd..afaa1474a283 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -623,16 +623,15 @@ extern int fb_get_color_depth(struct fb_var_screeninfo *var, extern int fb_get_options(const char *name, char **option); extern int fb_new_modelist(struct fb_info *info);
+#if IS_ENABLED(CONFIG_FB_OLPC_DCON) extern struct fb_info *registered_fb[FB_MAX]; + extern int num_registered_fb; +#endif extern bool fb_center_logo; extern int fb_logo_count; extern struct class *fb_class;
-#define for_each_registered_fb(i) \ - for (i = 0; i < FB_MAX; i++) \ - if (!registered_fb[i]) {} else - static inline void lock_fb_info(struct fb_info *info) { mutex_lock(&info->lock);