Re: [PATCH] compiler.h: Fix barrier_data() on clang

Randy Dunlap
2020-11-16T19:29:25Z

On 11/16/20 10:30 AM, Andreas Schwab wrote:
> On Nov 16 2020, Randy Dunlap wrote:
>
>> What kernel version are you building?
>
> 5.10-rc4
>
> Andreas.

OK, thanks.

My build machine is slow, but I have a patch that I am testing:

---
From: Randy Dunlap <rdunlap@infradead.org>

riscv's <vdso/processor.h> uses barrier() so it should
#include <asm/barrier.h> to prevent build errors.

Reported-by: Andreas Schwab <schwab@linux-m68k.org>
---
arch/riscv/include/asm/vdso/processor.h | 2 ++
1 file changed, 2 insertions(+)

--- lnx-510-rc4.orig/arch/riscv/include/asm/vdso/processor.h
+++ lnx-510-rc4/arch/riscv/include/asm/vdso/processor.h
@@ -4,6 +4,8 @@

#ifndef __ASSEMBLY__

+#include <asm/barrier.h>
+
static inline void cpu_relax(void)
{
#ifdef __riscv_muldiv