From: Linus Walleij <linus.walleij@linaro.org>
To: Russell King <linux@armlinux.org.uk>
Cc: Linus Walleij <linus.walleij@linaro.org>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: mm: Simplify act_mm macro
Date: Tue, 26 May 2020 16:32:49 +0200 [thread overview]
Message-ID: <20200526143249.68202-1-linus.walleij@linaro.org> (raw)
The act_mm assembly macro is actually partly reimplementing
get_thread_info so let's just use that.
Suggested-by: Russell King <linux@armlinux.org.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
arch/arm/mm/proc-macros.S | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S
index 60ac7c5999a9..65eaea85d3d6 100644
--- a/arch/arm/mm/proc-macros.S
+++ b/arch/arm/mm/proc-macros.S
@@ -5,7 +5,6 @@
* VMA_VM_FLAGS
* VM_EXEC
*/
-#include <linux/const.h>
#include <asm/asm-offsets.h>
#include <asm/thread_info.h>
@@ -31,9 +30,7 @@
* act_mm - get current->active_mm
*/
.macro act_mm, rd
- bic \rd, sp, #(THREAD_SIZE - 1) & ~63
- bic \rd, \rd, #63
- ldr \rd, [\rd, #TI_TASK]
+ get_thread_info \rd
.if (TSK_ACTIVE_MM > IMM12_MASK)
add \rd, \rd, #TSK_ACTIVE_MM & ~IMM12_MASK
.endif
--
2.25.4
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next reply other threads:[~2020-05-26 14:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-26 14:32 Linus Walleij [this message]
2020-05-26 14:37 ` [PATCH] ARM: mm: Simplify act_mm macro Russell King - ARM Linux admin
2020-05-26 18:08 ` Linus Walleij
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