diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-04-28 14:24:44 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-05-08 15:28:33 +0200 |
| commit | 962a3faf32666a31c5a05c2a69023a4abab6389f (patch) | |
| tree | 31ccd8192bbebe054007ede354a4a0df731c1b0d | |
| parent | fbdev/smscufx: Use struct fb_info.screen_buffer (diff) | |
| download | linux-962a3faf32666a31c5a05c2a69023a4abab6389f.tar.xz linux-962a3faf32666a31c5a05c2a69023a4abab6389f.zip | |
fbdev/udlfb: Use struct fb_info.screen_buffer
Use info->screen_buffer when reading and writing framebuffers in
system memory. It's the correct pointer for this address space.
The struct fb_info has a union to store the framebuffer memory. This can
either be info->screen_base if the framebuffer is stored in I/O memory,
or info->screen_buffer if the framebuffer is stored in system memory.
As the driver operates on the latter address space, it is wrong to use
.screen_base and .screen_buffer must be used instead. This also gets
rid of casting needed due to not using the correct data type.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230428122452.4856-12-tzimmermann@suse.de
| -rw-r--r-- | drivers/video/fbdev/udlfb.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/video/fbdev/udlfb.c b/drivers/video/fbdev/udlfb.c index 216d49c9d47e..09cf9381075a 100644 --- a/drivers/video/fbdev/udlfb.c +++ b/drivers/video/fbdev/udlfb.c @@ -1006,7 +1006,7 @@ static void dlfb_ops_destroy(struct fb_info *info) fb_dealloc_cmap(&info->cmap); if (info->monspecs.modedb) fb_destroy_modedb(info->monspecs.modedb); - vfree(info->screen_base); + vfree(info->screen_buffer); fb_destroy_modelist(&info->modelist); @@ -1120,7 +1120,7 @@ static int dlfb_ops_set_par(struct fb_info *info) /* paint greenscreen */ - pix_framebuffer = (u16 *) info->screen_base; + pix_framebuffer = (u16 *)info->screen_buffer; for (i = 0; i < info->fix.smem_len / 2; i++) pix_framebuffer[i] = 0x37e6; } @@ -1219,7 +1219,7 @@ static void dlfb_deferred_vfree(struct dlfb_data *dlfb, void *mem) static int dlfb_realloc_framebuffer(struct dlfb_data *dlfb, struct fb_info *info, u32 new_len) { u32 old_len = info->fix.smem_len; - const void *old_fb = (const void __force *)info->screen_base; + const void *old_fb = info->screen_buffer; unsigned char *new_fb; unsigned char *new_back = NULL; @@ -1236,12 +1236,12 @@ static int dlfb_realloc_framebuffer(struct dlfb_data *dlfb, struct fb_info *info } memset(new_fb, 0xff, new_len); - if (info->screen_base) { + if (info->screen_buffer) { memcpy(new_fb, old_fb, old_len); - dlfb_deferred_vfree(dlfb, (void __force *)info->screen_base); + dlfb_deferred_vfree(dlfb, info->screen_buffer); } - info->screen_base = (char __iomem *)new_fb; + info->screen_buffer = new_fb; info->fix.smem_len = new_len; info->fix.smem_start = (unsigned long) new_fb; info->flags = udlfb_info_flags; |