From: Ard Biesheuvel <ardb@kernel.org>
To: linux-efi@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>
Cc: Ard Biesheuvel <ardb@kernel.org>,
linux-kernel@vger.kernel.org,
Arvind Sankar <nivedita@alum.mit.edu>,
Atish Patra <atish.patra@wdc.com>,
Palmer Dabbelt <palmerdabbelt@google.com>,
Zou Wei <zou_wei@huawei.com>
Subject: [PATCH 09/33] efi/gop: Slightly re-arrange logic of find_gop
Date: Fri, 24 Apr 2020 15:05:07 +0200 [thread overview]
Message-ID: <20200424130531.30518-10-ardb@kernel.org> (raw)
In-Reply-To: <20200424130531.30518-1-ardb@kernel.org>
From: Arvind Sankar <nivedita@alum.mit.edu>
Small cleanup to get rid of conout_found.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200320020028.1936003-6-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
drivers/firmware/efi/libstub/gop.c | 30 +++++++++++++-----------------
1 file changed, 13 insertions(+), 17 deletions(-)
diff --git a/drivers/firmware/efi/libstub/gop.c b/drivers/firmware/efi/libstub/gop.c
index 92abcf558845..a7d3efe36c78 100644
--- a/drivers/firmware/efi/libstub/gop.c
+++ b/drivers/firmware/efi/libstub/gop.c
@@ -99,7 +99,6 @@ find_gop(efi_guid_t *proto, unsigned long size, void **handles)
for_each_efi_handle(h, handles, size, i) {
efi_guid_t conout_proto = EFI_CONSOLE_OUT_DEVICE_GUID;
- bool conout_found = false;
void *dummy = NULL;
status = efi_bs_call(handle_protocol, h, proto, (void **)&gop);
@@ -111,25 +110,22 @@ find_gop(efi_guid_t *proto, unsigned long size, void **handles)
if (info->pixel_format == PIXEL_BLT_ONLY)
continue;
+ /*
+ * Systems that use the UEFI Console Splitter may
+ * provide multiple GOP devices, not all of which are
+ * backed by real hardware. The workaround is to search
+ * for a GOP implementing the ConOut protocol, and if
+ * one isn't found, to just fall back to the first GOP.
+ *
+ * Once we've found a GOP supporting ConOut,
+ * don't bother looking any further.
+ */
status = efi_bs_call(handle_protocol, h, &conout_proto, &dummy);
if (status == EFI_SUCCESS)
- conout_found = true;
-
- if (!first_gop || conout_found) {
- /*
- * Systems that use the UEFI Console Splitter may
- * provide multiple GOP devices, not all of which are
- * backed by real hardware. The workaround is to search
- * for a GOP implementing the ConOut protocol, and if
- * one isn't found, to just fall back to the first GOP.
- *
- * Once we've found a GOP supporting ConOut,
- * don't bother looking any further.
- */
+ return gop;
+
+ if (!first_gop)
first_gop = gop;
- if (conout_found)
- break;
- }
}
return first_gop;
--
2.17.1
next prev parent reply other threads:[~2020-04-24 13:06 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-24 13:04 [GIT PULL 00/33] EFI updates for v5.8 Ard Biesheuvel
2020-04-24 13:04 ` [PATCH 01/33] efi/libstub: Move arm-stub to a common file Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 02/33] efi/libstub: Make initrd file loader configurable Ard Biesheuvel
2020-04-24 13:15 ` Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 03/33] efi/libstub: Unify EFI call wrappers for non-x86 Ard Biesheuvel
2020-05-03 15:09 ` Guenter Roeck
2020-05-03 16:09 ` Arvind Sankar
2020-05-03 16:11 ` Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 04/33] efi/libstub/arm: Make install_memreserve_table static Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 05/33] efi/gop: Remove redundant current_fb_base Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 06/33] efi/gop: Move check for framebuffer before con_out Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 07/33] efi/gop: Get mode information outside the loop Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 08/33] efi/gop: Factor out locating the gop into a function Ard Biesheuvel
2020-04-24 13:05 ` Ard Biesheuvel [this message]
2020-04-24 13:05 ` [PATCH 10/33] efi/gop: Move variable declarations into loop block Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 11/33] efi/gop: Use helper macros for populating lfb_base Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 12/33] efi/gop: Use helper macros for find_bits Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 13/33] efi/gop: Remove unreachable code from setup_pixel_info Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 14/33] efi/gop: Add prototypes for query_mode and set_mode Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 15/33] efi/gop: Allow specifying mode number on command line Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 16/33] efi/gop: Allow specifying mode by <xres>x<yres> Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 17/33] efi/gop: Allow specifying depth as well as resolution Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 18/33] efi/gop: Allow automatically choosing the best mode Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 19/33] efi/libstub/random: Align allocate size to EFI_ALLOC_ALIGN Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 20/33] efi/libstub/random: Increase random alloc granularity Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 21/33] efi/libstub/arm64: Replace 'preferred' offset with alignment check Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 22/33] efi/libstub/arm64: Simplify randomized loading of kernel image Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 23/33] efi/libstub: Add API function to allocate aligned memory Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 24/33] efi/libstub/arm64: Switch to ordinary page allocator for kernel image Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 25/33] efi/libstub: Move efi_relocate_kernel() into separate source file Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 26/33] efi/arm: Remove __efistub_global annotation Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 27/33] efi/x86: Remove __efistub_global and add relocation check Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 28/33] efi: Kill __efistub_global Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 29/33] efi/libstub: Drop __pure getter for efi_system_table Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 30/33] efi/libstub: Drop __pure getters for EFI stub options Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 31/33] efi/libstub/x86: Avoid getter function for efi_is64 Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 32/33] efi: Clean up config table description arrays Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 33/33] efi: Move arch_tables check to caller Ard Biesheuvel
2020-04-25 8:27 ` [GIT PULL 00/33] EFI updates for v5.8 Ingo Molnar
2020-04-25 9:57 ` Ard Biesheuvel
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