Re: [PATCH v2 2/2] RISC-V: Don't use a global include guard for uapi/asm/syscalls.h

From: Guenter Roeck
Date: Thu Aug 09 2018 - 17:24:26 EST

On Thu, Aug 09, 2018 at 01:25:24PM -0700, Palmer Dabbelt wrote:
> This file is expected to be included multiple times in the same file in
> order to allow the __SYSCALL macro to generate system call tables. With
> a global include guard we end up missing __NR_riscv_flush_icache in the
> syscall table, which results in icache flushes that escape the vDSO call
> to not actually do anything.
> The fix is to move to per-#define include guards, which allows the
> system call tables to actually be populated. Thanks to Macrus Comstedt
> for finding and fixing the bug!
> I also went ahead and fixed the SPDX header to use a //-style comment,
> which I've been told is the canonical way to do it.
> Cc: Marcus Comstedt <marcus@xxxxxxxx>
> Signed-off-by: Palmer Dabbelt <palmer@xxxxxxxxxx>

[Compile-]Tested-by: Guenter Roeck <linux@xxxxxxxxxxxx>

on top of linux-next after reverting the version of the patch there.

I also tried to run the resulting image (defconfig) with qemu (built
from, but that still doesn't
work. I assume there are still some patches missing ?