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

Randy Dunlap
2020-11-16T22:20:03Z

On 11/16/20 11:28 AM, Randy Dunlap wrote:
> 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

This fixes the emulex/benet/ driver build.
I'm still building allmodconfig to see if there are any
other issues.

--
~Randy