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6cb281662a
[ Upstream commit 0dfffa5479 ]
When compiling a driver written for MIPS on OpenRISC that uses the nop()
function, it fails due to the following error:
drivers/watchdog/pic32-wdt.c: Assembler messages:
drivers/watchdog/pic32-wdt.c:125: Error: unrecognized instruction `nop'
The driver currently uses the generic version of nop() from
include/asm-generic/barrier.h:
#ifndef nop
#define nop() asm volatile ("nop")
#endif
Let's fix this on OpenRISC by defining an architecture-specific version
of nop().
This was tested by performing an allmodconfig openrisc cross compile on
an aarch64 host.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202601180236.BVy480We-lkp@intel.com/
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
12 lines
241 B
C
12 lines
241 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_BARRIER_H
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#define __ASM_BARRIER_H
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#define mb() asm volatile ("l.msync" ::: "memory")
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#define nop() asm volatile ("l.nop")
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#include <asm-generic/barrier.h>
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#endif /* __ASM_BARRIER_H */
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