On 12/16/22 07:35, Gerd Bayer wrote:
On Tue, 2022-12-06 at 11:13 +0800, chenxiang (M) wrote:
在 2022/12/5 21:50, Gerd Bayer 写道:
Since [1] the user-space program dma_map_benchmark shares the
header file
linux/map_benchmark.h with the kernel driver in
kernel/dma/map_benchmark.c.
With latest kernel version this does not compile any more.
While https://kernelnewbies.org/KernelHeaders suggests otherwise,
allow it
to use of kernel headers through the uapi/ include direcotry. I
assume we can
do so safely, since the controlling user-space program is
distributed with
the kernel.
With this change dma_map_benchmark compiles with just the obvious
warning
about uapi usage on ARCH=x86 and s390 and runs on ARCH=s390.
[1] commit 8ddde07a3d28 ("dma-mapping: benchmark: extract a common
header file for map_benchmark definition")
Signed-off-by: Gerd Bayer <gbayer@xxxxxxxxxxxxx>
It also solves the compile error on arm64 platform.
Acked-by: Xiang Chen <chenxiang66@xxxxxxxxxxxxx>
Hi Xiang Chen, hi Shuah,
so is there any chance to have this compile fix integrated into linux-
next still, or is this too late now?
Plan to apply this after the merge window closes
thanks,
-- Shuah
