linux-kernel - [RFC PATCH 2/6] ARM: Use update_thread

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Message-Id: <1524135528-28561-3-git-send-email-Dave.Martin@arm.com>
Date:   Thu, 19 Apr 2018 11:58:44 +0100
From:   Dave Martin <Dave.Martin@....com>
To:     linux-kernel@...r.kernel.org
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        James Hogan <jhogan@...nel.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        "David S. Miller" <davem@...emloft.net>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Oleg Nesterov <oleg@...hat.com>, linux-arch@...r.kernel.org,
        Russell King <linux@...linux.org.uk>
Subject: [RFC PATCH 2/6] ARM: Use update_thread_flag()

This patch uses the new update_thread_flag() helper to simplify an
if () set; else clear; construct.

No functional change.

Signed-off-by: Dave Martin <Dave.Martin@....com>
Cc: Russell King <linux@...linux.org.uk>
---
 arch/arm/kernel/elf.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/arm/kernel/elf.c b/arch/arm/kernel/elf.c
index 1824229..aade393 100644
--- a/arch/arm/kernel/elf.c
+++ b/arch/arm/kernel/elf.c
@@ -68,12 +68,9 @@ void elf_set_personality(const struct elf32_hdr *x)
 	 * binary is EABI or softfloat (and thus, guaranteed not to use
 	 * FPA instructions.)
 	 */
-	if (elf_hwcap & HWCAP_IWMMXT &&
-	    eflags & (EF_ARM_EABI_MASK | EF_ARM_SOFT_FLOAT)) {
-		set_thread_flag(TIF_USING_IWMMXT);
-	} else {
-		clear_thread_flag(TIF_USING_IWMMXT);
-	}
+	update_thread_flag(TIF_USING_IWMMXT,
+			   elf_hwcap & HWCAP_IWMMXT &&
+			   eflags & (EF_ARM_EABI_MASK | EF_ARM_SOFT_FLOAT));
 }
 EXPORT_SYMBOL(elf_set_personality);
 
-- 
2.1.4