linux-kernel - [PATCH 2/6] xen/x86: Remove unnecessary memset() call

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Date:	Mon,  6 Jul 2015 23:34:21 -0400
From:	Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:	david.vrabel@...rix.com, konrad.wilk@...cle.com
Cc:	roger.pau@...rix.com, elena.ufimtseva@...cle.com,
	stefano.stabellini@...citrix.com, tim@....org, jbeulich@...e.com,
	andrew.cooper3@...rix.com, ian.campbell@...rix.com,
	wei.liu2@...rix.com, ian.jackson@...citrix.com,
	xen-devel@...ts.xenproject.org, linux-kernel@...r.kernel.org,
	boris.ostrovsky@...cle.com
Subject: [PATCH 2/6] xen/x86: Remove unnecessary memset() call

Since ctxt is kzalloc'd there is no need to call a memset for
ctxt->fpu_ctxt.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>
---
 arch/x86/xen/smp.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index ca7ee1f..7cf0765 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -377,7 +377,6 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
 	ctxt->user_regs.fs = __KERNEL_PERCPU;
 	ctxt->user_regs.gs = __KERNEL_STACK_CANARY;
 #endif
-	memset(&ctxt->fpu_ctxt, 0, sizeof(ctxt->fpu_ctxt));
 
 	if (!xen_feature(XENFEAT_auto_translated_physmap)) {
 		ctxt->user_regs.eip = (unsigned long)cpu_bringup_and_idle;
-- 
1.8.1.4

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