Commit 2345c4d7 authored Mar 11, 2020 by Eugeniy Paltsev Committed by Greg Kroah-Hartman Mar 18, 2020

ARC: define __ALIGN_STR and __ALIGN symbols for ARC



commit 8d92e992a785f35d23f845206cf8c6cafbc264e0 upstream.

The default defintions use fill pattern 0x90 for padding which for ARC
generates unintended "ldh_s r12,[r0,0x20]" corresponding to opcode 0x9090

So use ".align 4" which insert a "nop_s" instruction instead.

Cc: stable@vger.kernel.org
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 331c88f5

arch/arc/include/asm/linkage.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -14,6 +14,8 @@
		#ifdef __ASSEMBLY__

		#define ASM_NL ` /* use '`' to mark new line in macro */
		#define __ALIGN .align 4
		#define __ALIGN_STR __stringify(__ALIGN)

		/* annotation for data we want in DCCM - if enabled in .config */
		.macro ARCFP_DATA nm