This is a note to let you know that I've just added the patch titled
efi: Move efifb_setup_from_dmi() prototype from arch headers
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
efi-move-efifb_setup_from_dmi-prototype-from-arch-headers.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 4bc5e64e6cf37007e436970024e5998ee0935651 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Date: Fri, 26 Nov 2021 01:13:32 +0100
Subject: efi: Move efifb_setup_from_dmi() prototype from arch headers
From: Javier Martinez Canillas <javierm@xxxxxxxxxx>
commit 4bc5e64e6cf37007e436970024e5998ee0935651 upstream.
Commit 8633ef82f101 ("drivers/firmware: consolidate EFI framebuffer setup
for all arches") made the Generic System Framebuffers (sysfb) driver able
to be built on non-x86 architectures.
But it left the efifb_setup_from_dmi() function prototype declaration in
the architecture specific headers. This could lead to the following
compiler warning as reported by the kernel test robot:
drivers/firmware/efi/sysfb_efi.c:70:6: warning: no previous prototype for function 'efifb_setup_from_dmi' [-Wmissing-prototypes]
void efifb_setup_from_dmi(struct screen_info *si, const char *opt)
^
drivers/firmware/efi/sysfb_efi.c:70:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void efifb_setup_from_dmi(struct screen_info *si, const char *opt)
Fixes: 8633ef82f101 ("drivers/firmware: consolidate EFI framebuffer setup for all arches")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # 5.15.x
Signed-off-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Link: https://lore.kernel.org/r/20211126001333.555514-1-javierm@xxxxxxxxxx
Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/include/asm/efi.h | 1 -
arch/arm64/include/asm/efi.h | 1 -
arch/riscv/include/asm/efi.h | 1 -
arch/x86/include/asm/efi.h | 2 --
include/linux/efi.h | 6 ++++++
5 files changed, 6 insertions(+), 5 deletions(-)
--- a/arch/arm/include/asm/efi.h
+++ b/arch/arm/include/asm/efi.h
@@ -17,7 +17,6 @@
#ifdef CONFIG_EFI
void efi_init(void);
-extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
int efi_create_mapping(struct mm_struct *mm, efi_memory_desc_t *md);
int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
--- a/arch/arm64/include/asm/efi.h
+++ b/arch/arm64/include/asm/efi.h
@@ -14,7 +14,6 @@
#ifdef CONFIG_EFI
extern void efi_init(void);
-extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
#else
#define efi_init()
#endif
--- a/arch/riscv/include/asm/efi.h
+++ b/arch/riscv/include/asm/efi.h
@@ -13,7 +13,6 @@
#ifdef CONFIG_EFI
extern void efi_init(void);
-extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
#else
#define efi_init()
#endif
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -197,8 +197,6 @@ static inline bool efi_runtime_supported
extern void parse_efi_setup(u64 phys_addr, u32 data_len);
-extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
-
extern void efi_thunk_runtime_setup(void);
efi_status_t efi_set_virtual_address_map(unsigned long memory_map_size,
unsigned long descriptor_size,
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1282,4 +1282,10 @@ static inline struct efi_mokvar_table_en
}
#endif
+#ifdef CONFIG_SYSFB
+extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
+#else
+static inline void efifb_setup_from_dmi(struct screen_info *si, const char *opt) { }
+#endif
+
#endif /* _LINUX_EFI_H */
Patches currently in stable-queue which might be from javierm@xxxxxxxxxx are
queue-5.15/efi-move-efifb_setup_from_dmi-prototype-from-arch-headers.patch
