[PATCH v2 10/19] arm64: entry: consolidate EL1 exception returns
From: Mark Rutland <mark.rutland@arm.com>
Date: 2021-05-19 13:10:18
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
Following the example of ret_to_user, let's consolidate all the EL1 return paths with a ret_to_kernel helper, rather than each entry point having its own copy of the return code. There should be no functional change as a result of this patch. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: James Morse <james.morse@arm.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Will Deacon <will@kernel.org> --- arch/arm64/kernel/entry.S | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index be8e596af75a..9b662d4c09d8 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S@@ -618,7 +618,7 @@ SYM_CODE_START_LOCAL_NOALIGN(el1_sync) kernel_entry 1 mov x0, sp bl el1_sync_handler - kernel_exit 1 + b ret_to_kernel SYM_CODE_END(el1_sync) .align 6
@@ -626,7 +626,7 @@ SYM_CODE_START_LOCAL_NOALIGN(el1_irq) kernel_entry 1 mov x0, sp bl el1_irq_handler - kernel_exit 1 + b ret_to_kernel SYM_CODE_END(el1_irq) .align 6
@@ -634,7 +634,7 @@ SYM_CODE_START_LOCAL_NOALIGN(el1_fiq) kernel_entry 1 mov x0, sp bl el1_fiq_handler - kernel_exit 1 + b ret_to_kernel SYM_CODE_END(el1_fiq) .align 6
@@ -642,9 +642,13 @@ SYM_CODE_START_LOCAL_NOALIGN(el1_error) kernel_entry 1 mov x0, sp bl el1_error_handler - kernel_exit 1 + b ret_to_kernel SYM_CODE_END(el1_error) +SYM_CODE_START_LOCAL(ret_to_kernel) + kernel_exit 1 +SYM_CODE_END(ret_to_kernel) + /* * EL0 mode handlers. */
--
2.11.0
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