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x86/entry/64: Add instruction suffix
authorJan Beulich <JBeulich@suse.com>
Mon, 26 Feb 2018 11:11:21 +0000 (04:11 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 9 Jan 2021 12:37:36 +0000 (13:37 +0100)
commit a368d7fd2a3c6babb852fe974018dd97916bcd3b upstream.

Omitting suffixes from instructions in AT&T mode is bad practice when
operand size cannot be determined by the assembler from register
operands, and is likely going to be warned about by upstream gas in the
future (mine does already). Add the single missing suffix here.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/5A93F96902000078001ABAC8@prv-mh.provo.novell.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/entry/entry_64.S patch | blob | blame | history

diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index f24974bddfc962b9b8fdaf0254c9cb079acde59f..ac389ffb1822bf2e59c2d76af8d667edc7c18b20 100644 (file)
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -55,7 +55,7 @@ END(native_usergs_sysret64)
 
 .macro TRACE_IRQS_IRETQ
 #ifdef CONFIG_TRACE_IRQFLAGS
-       bt      $9, EFLAGS(%rsp)                /* interrupts off? */
+       btl     $9, EFLAGS(%rsp)                /* interrupts off? */
        jnc     1f
        TRACE_IRQS_ON
 1: