From: Sudeep Holla <sudeep.holla@arm.com>
To: linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-efi@vger.kernel.org
Cc: Sudeep Holla <sudeep.holla@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Jose Marinho <jose.marinho@arm.com>,
Ard Biesheuvel <ardb@kernel.org>
Subject: [PATCH v2 2/4] arm64: efi: Simplify arch_efi_call_virt() macro by using typeof()
Date: Tue, 28 Jun 2022 13:53:44 +0100 [thread overview]
Message-ID: <20220628125346.693304-3-sudeep.holla@arm.com> (raw)
In-Reply-To: <20220628125346.693304-1-sudeep.holla@arm.com>
Currently, the arch_efi_call_virt() assumes all users of it will have
defined a type 'efi_##f##_t' to make use of it. It is unnecessarily
forcing the users to create a new typedef when __efi_rt_asm_wrapper()
actually expects void pointer.
Simplify the arch_efi_call_virt() macro by using typeof(p->f) which must
be a pointer as required by __efi_rt_asm_wrapper() and eliminate the
explicit need for efi_##f##_t type for every user of this macro.
This is needed now in preparation to enable PRMT support on ARM64.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
---
arch/arm64/include/asm/efi.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h
index ad55079abe47..53376cdab175 100644
--- a/arch/arm64/include/asm/efi.h
+++ b/arch/arm64/include/asm/efi.h
@@ -29,8 +29,7 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
#define arch_efi_call_virt(p, f, args...) \
({ \
- efi_##f##_t *__f; \
- __f = p->f; \
+ typeof(p->f) __f = p->f; \
__efi_rt_asm_wrapper(__f, #f, args); \
})
--
2.37.0
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next prev parent reply other threads:[~2022-06-28 12:55 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-28 12:53 [PATCH v2 0/4] ACPI: Enable Platform Runtime Mechanism(PRM) support on ARM64 Sudeep Holla
2022-06-28 12:53 ` [PATCH v2 1/4] ACPI: PRM: Change handler_addr type to void pointer Sudeep Holla
2022-06-28 17:06 ` Ard Biesheuvel
2022-06-28 12:53 ` Sudeep Holla [this message]
2022-06-28 17:10 ` [PATCH v2 2/4] arm64: efi: Simplify arch_efi_call_virt() macro by using typeof() Ard Biesheuvel
2022-06-28 12:53 ` [PATCH v2 3/4] ACPI: Enable Platform Runtime Mechanism(PRM) support on ARM64 Sudeep Holla
2022-06-28 17:11 ` Ard Biesheuvel
2022-06-28 12:53 ` [PATCH v2 4/4] ACPI: Move PRM config option under the main ACPI config Sudeep Holla
2022-06-28 17:11 ` Ard Biesheuvel
2022-06-29 9:06 ` [PATCH v2 0/4] ACPI: Enable Platform Runtime Mechanism(PRM) support on ARM64 Sudeep Holla
2022-06-29 9:21 ` Sudeep Holla
2022-06-29 19:12 ` Rafael J. Wysocki
2022-06-30 13:02 ` Sudeep Holla
2022-06-30 15:36 ` Ard Biesheuvel
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