From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 663EEC2D0BF for ; Sun, 8 Dec 2019 13:33:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4649E206F4 for ; Sun, 8 Dec 2019 13:33:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726575AbfLHNdw (ORCPT ); Sun, 8 Dec 2019 08:33:52 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:36610 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726418AbfLHNdv (ORCPT ); Sun, 8 Dec 2019 08:33:51 -0500 Received: from [5.158.153.53] (helo=tip-bot2.lab.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1idwgp-0007gW-4F; Sun, 08 Dec 2019 14:33:35 +0100 Received: from [127.0.1.1] (localhost [IPv6:::1]) by tip-bot2.lab.linutronix.de (Postfix) with ESMTP id 269171C2882; Sun, 8 Dec 2019 14:33:34 +0100 (CET) Date: Sun, 08 Dec 2019 13:33:34 -0000 From: "tip-bot2 for Arvind Sankar" Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: efi/urgent] efi/gop: Return EFI_NOT_FOUND if there are no usable GOPs Cc: Arvind Sankar , Ard Biesheuvel , Andy Shevchenko , Bhupesh Sharma , Masayoshi Mizuma , linux-efi@vger.kernel.org, Ingo Molnar , x86 , LKML In-Reply-To: <20191206165542.31469-3-ardb@kernel.org> References: <20191206165542.31469-3-ardb@kernel.org> MIME-Version: 1.0 Message-ID: <157581201403.21853.7025589605824516098.tip-bot2@tip-bot2> X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the efi/urgent branch of tip: Commit-ID: 6fc3cec30dfeee7d3c5db8154016aff9d65503c5 Gitweb: https://git.kernel.org/tip/6fc3cec30dfeee7d3c5db8154016aff9d65503c5 Author: Arvind Sankar AuthorDate: Fri, 06 Dec 2019 16:55:38 Committer: Ingo Molnar CommitterDate: Sun, 08 Dec 2019 12:42:18 +01:00 efi/gop: Return EFI_NOT_FOUND if there are no usable GOPs If we don't find a usable instance of the Graphics Output Protocol (GOP) because none of them have a framebuffer (i.e. they were all PIXEL_BLT_ONLY), but all the EFI calls succeeded, we will return EFI_SUCCESS even though we didn't find a usable GOP. Fix this by explicitly returning EFI_NOT_FOUND if no usable GOPs are found, allowing the caller to probe for UGA instead. Signed-off-by: Arvind Sankar Signed-off-by: Ard Biesheuvel Cc: Andy Shevchenko Cc: Bhupesh Sharma Cc: Masayoshi Mizuma Cc: linux-efi@vger.kernel.org Link: https://lkml.kernel.org/r/20191206165542.31469-3-ardb@kernel.org Signed-off-by: Ingo Molnar --- drivers/firmware/efi/libstub/gop.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/firmware/efi/libstub/gop.c b/drivers/firmware/efi/libstub/gop.c index 0101ca4..08f3c1a 100644 --- a/drivers/firmware/efi/libstub/gop.c +++ b/drivers/firmware/efi/libstub/gop.c @@ -119,7 +119,7 @@ setup_gop32(efi_system_table_t *sys_table_arg, struct screen_info *si, u64 fb_base; struct efi_pixel_bitmask pixel_info; int pixel_format; - efi_status_t status = EFI_NOT_FOUND; + efi_status_t status; u32 *handles = (u32 *)(unsigned long)gop_handle; int i; @@ -175,7 +175,7 @@ setup_gop32(efi_system_table_t *sys_table_arg, struct screen_info *si, /* Did we find any GOPs? */ if (!first_gop) - goto out; + return EFI_NOT_FOUND; /* EFI framebuffer */ si->orig_video_isVGA = VIDEO_TYPE_EFI; @@ -197,7 +197,7 @@ setup_gop32(efi_system_table_t *sys_table_arg, struct screen_info *si, si->lfb_size = si->lfb_linelength * si->lfb_height; si->capabilities |= VIDEO_CAPABILITY_SKIP_QUIRKS; -out: + return status; } @@ -237,7 +237,7 @@ setup_gop64(efi_system_table_t *sys_table_arg, struct screen_info *si, u64 fb_base; struct efi_pixel_bitmask pixel_info; int pixel_format; - efi_status_t status = EFI_NOT_FOUND; + efi_status_t status; u64 *handles = (u64 *)(unsigned long)gop_handle; int i; @@ -293,7 +293,7 @@ setup_gop64(efi_system_table_t *sys_table_arg, struct screen_info *si, /* Did we find any GOPs? */ if (!first_gop) - goto out; + return EFI_NOT_FOUND; /* EFI framebuffer */ si->orig_video_isVGA = VIDEO_TYPE_EFI; @@ -315,7 +315,7 @@ setup_gop64(efi_system_table_t *sys_table_arg, struct screen_info *si, si->lfb_size = si->lfb_linelength * si->lfb_height; si->capabilities |= VIDEO_CAPABILITY_SKIP_QUIRKS; -out: + return status; }