From cf7389b8095fabae076ef28b49dc3059b9eb899f Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 26 Sep 2018 18:11:22 +0200 Subject: [PATCH] efifb: BGRT: Add nobgrt option In some setups restoring the BGRT logo is undesirable, allow passing video=efifb:nobgrt on the kernel commandline to disable it. Reported-by: David Herrmann Signed-off-by: Hans de Goede Reviewed-by: David Herrmann Signed-off-by: Bartlomiej Zolnierkiewicz --- 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 3946649..ba906876 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; } } -- 2.7.4