Hi Javier.
On Wed, May 11, 2022 at 01:32:30PM +0200, Javier Martinez Canillas wrote:
From: Daniel Vetter <daniel.vetter@xxxxxxxx>
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.
Another way to fix this is to mark FB_OLPC_DCON and add a TODO entry to
fix this. We are really not supposed to carry such special code around
to keep staging working.
I know this may not be a popular viewpoint, but just look at the ugly
workarounds required here.
Sam
v2: I typoed the config name (0day)
Cc: kernel test robot <lkp@xxxxxxxxx>
Cc: Jens Frederich <jfrederich@xxxxxxxxx>
Cc: Jon Nettleton <jon.nettleton@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: linux-staging@xxxxxxxxxxxxxxx
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: Helge Deller <deller@xxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Cc: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: Xiyu Yang <xiyuyang19@xxxxxxxxxxxx>
Cc: linux-fbdev@xxxxxxxxxxxxxxx
Cc: Zheyu Ma <zheyuma97@xxxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
---
(no changes since v1)
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 265efa189bcc..6cab5f4c1fb3 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -50,10 +50,14 @@
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
It is stuff like this I refer to as "ugly" in the comment above.