[PATCH 2/2] arm64: Rename disable_daif to disable_all_int

Jinjie Ruan ruanjinjie at huawei.com
Thu Feb 29 05:28:02 PST 2024


As commit 0fbeb3187548 ("arm64: explicitly mask all exceptions") said,
the disable_daif macro is used to make it clear to 'mask all
exceptions'. However, if ALLINT is introduced by FEAT_NMI, DAIF and
ALLINT should be set to mask IRQs and NMIs, the disable_daif name
is not appropriate, so rename it to disable_all_int in all places.

Signed-off-by: Jinjie Ruan <ruanjinjie at huawei.com>
---
 arch/arm64/include/asm/assembler.h | 2 +-
 arch/arm64/kernel/entry.S          | 2 +-
 arch/arm64/mm/proc.S               | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index ab8b396428da..b93916594e8a 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -34,7 +34,7 @@
 	wx\n	.req	w\n
 	.endr
 
-	.macro disable_daif
+	.macro disable_all_int
 	msr	daifset, #0xf
 	.endm
 
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 7ef0e127b149..cb12003120ef 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -334,7 +334,7 @@ alternative_else_nop_endif
 
 	.macro	kernel_exit, el
 	.if	\el != 0
-	disable_daif
+	disable_all_int
 	.endif
 
 #ifdef CONFIG_ARM64_PSEUDO_NMI
diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S
index bfd2ad896108..4cd5558c5957 100644
--- a/arch/arm64/mm/proc.S
+++ b/arch/arm64/mm/proc.S
@@ -142,7 +142,7 @@ SYM_FUNC_START(cpu_do_resume)
 	 * exception. Mask them until local_daif_restore() in cpu_suspend()
 	 * resets them.
 	 */
-	disable_daif
+	disable_all_int
 	msr	mdscr_el1, x10
 
 	msr	sctlr_el1, x12
-- 
2.34.1




More information about the linux-arm-kernel mailing list