In some setups restoring the BGRT logo is undesirable, allow passing video=efifb:nobgrt on the kernel commandline to disable it.
Cc: David Herrmann dh.herrmann@gmail.com Reported-by: David Herrmann dh.herrmann@gmail.com Signed-off-by: Hans de Goede hdegoede@redhat.com --- drivers/video/fbdev/efifb.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c index 3946649b85c8..ba906876cc45 100644 --- a/drivers/video/fbdev/efifb.c +++ b/drivers/video/fbdev/efifb.c @@ -42,6 +42,7 @@ struct bmp_dib_header { u32 colors_important; } __packed;
+static bool use_bgrt = true; static bool request_mem_succeeded = false; static u64 mem_flags = EFI_MEMORY_WC | EFI_MEMORY_UC;
@@ -160,6 +161,9 @@ static void efifb_show_boot_graphics(struct fb_info *info) void *bgrt_image = NULL; u8 *dst = info->screen_base;
+ if (!use_bgrt) + return; + if (!bgrt_tab.image_address) { pr_info("efifb: No BGRT, not showing boot graphics\n"); return; @@ -290,6 +294,8 @@ static int efifb_setup(char *options) screen_info.lfb_width = simple_strtoul(this_opt+6, NULL, 0); else if (!strcmp(this_opt, "nowc")) mem_flags &= ~EFI_MEMORY_WC; + else if (!strcmp(this_opt, "nobgrt")) + use_bgrt = false; } }
Hi
On Wed, Sep 12, 2018 at 11:12 AM Hans de Goede hdegoede@redhat.com wrote:
In some setups restoring the BGRT logo is undesirable, allow passing video=efifb:nobgrt on the kernel commandline to disable it.
Cc: David Herrmann dh.herrmann@gmail.com Reported-by: David Herrmann dh.herrmann@gmail.com Signed-off-by: Hans de Goede hdegoede@redhat.com
drivers/video/fbdev/efifb.c | 6 ++++++ 1 file changed, 6 insertions(+)
Reviewed-by: David Herrmann dh.herrmann@gmail.com
Thanks a lot! David
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c index 3946649b85c8..ba906876cc45 100644 --- a/drivers/video/fbdev/efifb.c +++ b/drivers/video/fbdev/efifb.c @@ -42,6 +42,7 @@ struct bmp_dib_header { u32 colors_important; } __packed;
+static bool use_bgrt = true; static bool request_mem_succeeded = false; static u64 mem_flags = EFI_MEMORY_WC | EFI_MEMORY_UC;
@@ -160,6 +161,9 @@ static void efifb_show_boot_graphics(struct fb_info *info) void *bgrt_image = NULL; u8 *dst = info->screen_base;
if (!use_bgrt)
return;
if (!bgrt_tab.image_address) { pr_info("efifb: No BGRT, not showing boot graphics\n"); return;
@@ -290,6 +294,8 @@ static int efifb_setup(char *options) screen_info.lfb_width = simple_strtoul(this_opt+6, NULL, 0); else if (!strcmp(this_opt, "nowc")) mem_flags &= ~EFI_MEMORY_WC;
else if (!strcmp(this_opt, "nobgrt"))
use_bgrt = false; } }
-- 2.19.0.rc0
On 09/13/2018 08:51 AM, David Herrmann wrote:
Hi
On Wed, Sep 12, 2018 at 11:12 AM Hans de Goede hdegoede@redhat.com wrote:
In some setups restoring the BGRT logo is undesirable, allow passing video=efifb:nobgrt on the kernel commandline to disable it.
Cc: David Herrmann dh.herrmann@gmail.com Reported-by: David Herrmann dh.herrmann@gmail.com Signed-off-by: Hans de Goede hdegoede@redhat.com
drivers/video/fbdev/efifb.c | 6 ++++++ 1 file changed, 6 insertions(+)
Reviewed-by: David Herrmann dh.herrmann@gmail.com
Patch queued for 4.19, thanks.
Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics
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