Hi, Thomas
I love your patch, LoongArch also have UEFI GOP support,
Maybe the arch/loongarch/kernel/efi.c don't include the '#include
<linux/screen_info.h>' explicitly.
```
diff --git a/arch/loongarch/kernel/efi.c b/arch/loongarch/kernel/efi.c
index 3d448fef3af4..04f4d217aefb 100644
--- a/arch/loongarch/kernel/efi.c
+++ b/arch/loongarch/kernel/efi.c
@@ -19,6 +19,7 @@
#include <linux/memblock.h>
#include <linux/reboot.h>
#include <linux/uaccess.h>
+#include <linux/screen_info.h>
#include <asm/early_ioremap.h>
#include <asm/efi.h>
```
On 2023/6/29 19:45, Thomas Zimmermann wrote:
The header file <linux/efi.h> does not need anything from
<linux/screen_info.h>. Declare struct screen_info and remove
the include statements. Update a number of source files that
require struct screen_info's definition.
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: Ard Biesheuvel <ardb@xxxxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
With the above issue solved, please take my R-B if you would like.
Reviewed-by: Sui Jingfeng <suijingfeng@xxxxxxxxxxx>
---
arch/arm/kernel/efi.c | 2 ++
arch/arm64/kernel/efi.c | 1 +
drivers/firmware/efi/libstub/efi-stub-entry.c | 2 ++
drivers/firmware/efi/libstub/screen_info.c | 2 ++
include/linux/efi.h | 3 ++-
5 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/arch/arm/kernel/efi.c b/arch/arm/kernel/efi.c
index e2b9d2618c672..e94655ef16bb3 100644
--- a/arch/arm/kernel/efi.c
+++ b/arch/arm/kernel/efi.c
@@ -5,6 +5,8 @@
#include <linux/efi.h>
#include <linux/memblock.h>
+#include <linux/screen_info.h>
+
#include <asm/efi.h>
#include <asm/mach/map.h>
#include <asm/mmu_context.h>
diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c
index baab8dd3ead3c..3afbe503b066f 100644
--- a/arch/arm64/kernel/efi.c
+++ b/arch/arm64/kernel/efi.c
@@ -9,6 +9,7 @@
#include <linux/efi.h>
#include <linux/init.h>
+#include <linux/screen_info.h>
#include <asm/efi.h>
#include <asm/stacktrace.h>
diff --git a/drivers/firmware/efi/libstub/efi-stub-entry.c b/drivers/firmware/efi/libstub/efi-stub-entry.c
index cc4dcaea67fa6..2f1902e5d4075 100644
--- a/drivers/firmware/efi/libstub/efi-stub-entry.c
+++ b/drivers/firmware/efi/libstub/efi-stub-entry.c
@@ -1,6 +1,8 @@
// SPDX-License-Identifier: GPL-2.0-only
#include <linux/efi.h>
+#include <linux/screen_info.h>
+
#include <asm/efi.h>
#include "efistub.h"
diff --git a/drivers/firmware/efi/libstub/screen_info.c b/drivers/firmware/efi/libstub/screen_info.c
index 4be1c4d1f922b..a51ec201ca3cb 100644
--- a/drivers/firmware/efi/libstub/screen_info.c
+++ b/drivers/firmware/efi/libstub/screen_info.c
@@ -1,6 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/efi.h>
+#include <linux/screen_info.h>
+
#include <asm/efi.h>
#include "efistub.h"
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 571d1a6e1b744..360895a5572c0 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -24,10 +24,11 @@
#include <linux/range.h>
#include <linux/reboot.h>
#include <linux/uuid.h>
-#include <linux/screen_info.h>
#include <asm/page.h>
+struct screen_info;
+
#define EFI_SUCCESS 0
#define EFI_LOAD_ERROR ( 1 | (1UL << (BITS_PER_LONG-1)))
#define EFI_INVALID_PARAMETER ( 2 | (1UL << (BITS_PER_LONG-1)))
