Re: [01/12] efi: Do not include <linux/screen_info.h> from EFI header

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Hi

Am 05.07.23 um 03:40 schrieb Sui Jingfeng:
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.

Oh, thank you for testing. I try to build arch/ changes on all of the affected platforms, but I cannot build for all of them. I have no means of building for loongarch ATM.

I'll update the patch according to your feedback.

Best regards
Thomas



```

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)))


--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)

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