Re: [PATCH] efifb: BGRT: Add nobgrt option
From: David Herrmann <hidden>
Date: 2018-09-13 06:51:58
Also in:
dri-devel
Hi On Wed, Sep 12, 2018 at 11:12 AM Hans de Goede [off-list ref] wrote:
In some setups restoring the BGRT logo is undesirable, allow passing videoïifb:nobgrt on the kernel commandline to disable it. Cc: David Herrmann <redacted> Reported-by: David Herrmann <redacted> Signed-off-by: Hans de Goede <redacted> --- drivers/video/fbdev/efifb.c | 6 ++++++ 1 file changed, 6 insertions(+)
Reviewed-by: David Herrmann <redacted> Thanks a lot! David
quoted hunk ↗ jump to hunk
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