Re: [dpdk-dev] [PATCH v2] kernel/linux: fix kernel dir for meson

2019-12-03 Thread Ye Xiaolong
On 12/03, Bruce Richardson wrote:
>On Tue, Dec 03, 2019 at 08:33:22PM +0800, Ye Xiaolong wrote:
>> On 12/03, Bruce Richardson wrote:
>> >On Tue, Dec 03, 2019 at 01:29:17PM +0800, Xiaolong Ye wrote:
>> >> kernel_dir option in meson build is equivalent to RTE_KERNELDIR in make
>> >> system, for cross-compilation case, users would specify it as local
>> >> kernel src dir like
>> >> 
>> >> //target-arm_glibc/linux-arm/linux-4.19.81/
>> >> 
>> >> Current meson build would fail to compile kernel module if user specify
>> >> kernel_dir as above, this patch fixes this issue.
>> >> 
>> >> Fixes: 317832f97c16 ("kernel/linux: fix modules install path")
>> >> Cc: sta...@dpdk.org
>> >> Cc: iryz...@nfware.com
>> >> 
>> >> Signed-off-by: Xiaolong Ye 
>> >> ---
>> >> 
>> >> V2 changes:
>> >> 
>> >> 1. handle both normal and cross-compilation cases
>> >> 
>> >We need to handle both, but they need to be handled without breaking the
>> >currently working case where we pass in /lib/modules/$(uname -r)/ as the
>> >kerneldir path.
>> 
>> So you mean we should allow user to specify both /lib/modules/$(uname -r) and
>> /lib/modules/$(uname -r)/build as kernel_dir for normal case?
>> 
>That is up to you, but we need to still allow the former case so as to
>avoid breaking backward compatibility for existing build setups. Therefore
>I suggest supporting both is recommended.

Make sense, I'll try a new version.

Thanks,
Xiaolong
>
>/Bruce


Re: [dpdk-dev] [PATCH v2] kernel/linux: fix kernel dir for meson

2019-12-03 Thread Bruce Richardson
On Tue, Dec 03, 2019 at 08:33:22PM +0800, Ye Xiaolong wrote:
> On 12/03, Bruce Richardson wrote:
> >On Tue, Dec 03, 2019 at 01:29:17PM +0800, Xiaolong Ye wrote:
> >> kernel_dir option in meson build is equivalent to RTE_KERNELDIR in make
> >> system, for cross-compilation case, users would specify it as local
> >> kernel src dir like
> >> 
> >> //target-arm_glibc/linux-arm/linux-4.19.81/
> >> 
> >> Current meson build would fail to compile kernel module if user specify
> >> kernel_dir as above, this patch fixes this issue.
> >> 
> >> Fixes: 317832f97c16 ("kernel/linux: fix modules install path")
> >> Cc: sta...@dpdk.org
> >> Cc: iryz...@nfware.com
> >> 
> >> Signed-off-by: Xiaolong Ye 
> >> ---
> >> 
> >> V2 changes:
> >> 
> >> 1. handle both normal and cross-compilation cases
> >> 
> >We need to handle both, but they need to be handled without breaking the
> >currently working case where we pass in /lib/modules/$(uname -r)/ as the
> >kerneldir path.
> 
> So you mean we should allow user to specify both /lib/modules/$(uname -r) and
> /lib/modules/$(uname -r)/build as kernel_dir for normal case?
> 
That is up to you, but we need to still allow the former case so as to
avoid breaking backward compatibility for existing build setups. Therefore
I suggest supporting both is recommended.

/Bruce


Re: [dpdk-dev] [PATCH v2] kernel/linux: fix kernel dir for meson

2019-12-03 Thread Ye Xiaolong
On 12/03, Bruce Richardson wrote:
>On Tue, Dec 03, 2019 at 01:29:17PM +0800, Xiaolong Ye wrote:
>> kernel_dir option in meson build is equivalent to RTE_KERNELDIR in make
>> system, for cross-compilation case, users would specify it as local
>> kernel src dir like
>> 
>> //target-arm_glibc/linux-arm/linux-4.19.81/
>> 
>> Current meson build would fail to compile kernel module if user specify
>> kernel_dir as above, this patch fixes this issue.
>> 
>> Fixes: 317832f97c16 ("kernel/linux: fix modules install path")
>> Cc: sta...@dpdk.org
>> Cc: iryz...@nfware.com
>> 
>> Signed-off-by: Xiaolong Ye 
>> ---
>> 
>> V2 changes:
>> 
>> 1. handle both normal and cross-compilation cases
>> 
>We need to handle both, but they need to be handled without breaking the
>currently working case where we pass in /lib/modules/$(uname -r)/ as the
>kerneldir path.

So you mean we should allow user to specify both /lib/modules/$(uname -r) and
/lib/modules/$(uname -r)/build as kernel_dir for normal case?

Thanks,
Xiaolong

>
>/Bruce


Re: [dpdk-dev] [PATCH v2] kernel/linux: fix kernel dir for meson

2019-12-03 Thread Bruce Richardson
On Tue, Dec 03, 2019 at 01:29:17PM +0800, Xiaolong Ye wrote:
> kernel_dir option in meson build is equivalent to RTE_KERNELDIR in make
> system, for cross-compilation case, users would specify it as local
> kernel src dir like
> 
> //target-arm_glibc/linux-arm/linux-4.19.81/
> 
> Current meson build would fail to compile kernel module if user specify
> kernel_dir as above, this patch fixes this issue.
> 
> Fixes: 317832f97c16 ("kernel/linux: fix modules install path")
> Cc: sta...@dpdk.org
> Cc: iryz...@nfware.com
> 
> Signed-off-by: Xiaolong Ye 
> ---
> 
> V2 changes:
> 
> 1. handle both normal and cross-compilation cases
> 
We need to handle both, but they need to be handled without breaking the
currently working case where we pass in /lib/modules/$(uname -r)/ as the
kerneldir path.

/Bruce