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efi: Simplify arch_efi_call_virt() macro 

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2122317
Conflicts:
	arch/loongarch/include/asm/efi.h - not included in
centos-9, so this part of the commit was omitted
	arch/x86/include/asm/efi.h - context differences
caused the second stanza's undef to fail to apply. Applied
it by hand.

commit 8add9a3a2243166f8f60fc20e876caaf30a333f7
Author: Sudeep Holla <sudeep.holla@arm.com>
Date: Tue, 28 Jun 2022 15:18:21 +0100

Currently, the arch_efi_call_virt() assumes all users of it will have
defined a type 'efi_##f##_t' to make use of it.

Simplify the arch_efi_call_virt() macro by eliminating the explicit
need for efi_##f##_t type for every user of this macro.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
[ardb: apply Sudeep's ARM fix to i686, Loongarch and RISC-V too]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Mark Langsdorf <mlangsdo@redhat.com>
This commit is contained in:
Mark Langsdorf 2022-09-07 14:17:05 -04:00
parent 55a0efa3f3
commit ed88433ff2
5 changed files with 6 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
arch/arm/include/asm/efi.h
View File

@ -24,13 +24,6 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
#define arch_efi_call_virt_setup() efi_virtmap_load()
#define arch_efi_call_virt_teardown() efi_virtmap_unload()
#define arch_efi_call_virt(p, f, args...) \
({ \
efi_##f##_t *__f; \
__f = p->f; \
__f(args); \
})
#define ARCH_EFI_IRQ_FLAGS_MASK \
(PSR_J_BIT | PSR_E_BIT | PSR_A_BIT | PSR_I_BIT | PSR_F_BIT | \
PSR_T_BIT | MODE_MASK)

7
arch/arm64/include/asm/efi.h
View File

@ -27,12 +27,9 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
__efi_fpsimd_begin(); \
})
#undef arch_efi_call_virt
#define arch_efi_call_virt(p, f, args...) \
({ \
efi_##f##_t *__f; \
__f = p->f; \
__efi_rt_asm_wrapper(__f, #f, args); \
})
__efi_rt_asm_wrapper((p)->f, #f, args)
#define arch_efi_call_virt_teardown() \
({ \

2
arch/riscv/include/asm/efi.h
View File

@ -23,8 +23,6 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
#define arch_efi_call_virt_setup() efi_virtmap_load()
#define arch_efi_call_virt_teardown() efi_virtmap_unload()
#define arch_efi_call_virt(p, f, args...) p->f(args)
#define ARCH_EFI_IRQ_FLAGS_MASK (SR_IE | SR_SPIE)
/* Load initrd anywhere in system RAM */

5
arch/x86/include/asm/efi.h
View File

@ -99,8 +99,6 @@ static inline void efi_fpu_end(void)
efi_fpu_end(); \
})
#define arch_efi_call_virt(p, f, args...) p->f(args)
#else /* !CONFIG_X86_32 */
#define EFI_LOADER_SIGNATURE "EL64"
@ -120,8 +118,9 @@ extern asmlinkage u64 __efi_call(void *fp, ...);
efi_enter_mm(); \
})
#undef arch_efi_call_virt
#define arch_efi_call_virt(p, f, args...) \
efi_call((void *)p->f, args) \
efi_call((void *)p->f, args)
#define arch_efi_call_virt_teardown() \
({ \

2
include/linux/efi.h
View File

@ -1185,6 +1185,8 @@ static inline void efi_check_for_embedded_firmwares(void) { }
efi_status_t efi_random_get_seed(void);
#define arch_efi_call_virt(p, f, args...) ((p)->f(args))
/*
* Arch code can implement the following three template macros, avoiding
* reptition for the void/non-void return cases of {__,}efi_call_virt():