On 6/27/22 11:45 AM, Masahiro Yamada wrote:
> On Tue, Jun 28, 2022 at 1:54 AM Shuah Khan <skhan(a)linuxfoundation.org> wrote:
>>
>> On 6/27/22 1:02 AM, Muhammad Usama Anjum wrote:
>>> Build of kselftests fail if kernel's top most Makefile is used for
>>> running or building kselftests with separate output directory which is
>>> sub-directory. srctree is set to .. erroneously.
>>>
>>> make kselftest-all O=/linux_mainline/build
>>> Makefile:1080: ../scripts/Makefile.extrawarn: No such file or directory
>>>
>>> make kselftest-all O=build
>>> Makefile:1080: ../scripts/Makefile.extrawarn: No such file or directory
>>>
>>> Fix this by comparing abs_srctree with CURDIR instead of abs_objtree.
>>> CURDIR changes based on from where the command has been run and it sets
>>> the srctree correctly.
>>>
>>> Fixes: 25b146c5b8cee("kbuild: allow Kbuild to start from any directory")
>>> Signed-off-by: Muhammad Usama Anjum <usama.anjum(a)collabora.com>
>>> ---
>>> Changes in V2:
>>> - Correct the bugfix instead of workaround
>>>
>>> V1: https://lore.kernel.org/lkml/20220223191016.1658728-1-usama.anjum@collabora…
>>> ---
>>> Makefile | 4 ++--
>>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/Makefile b/Makefile
>>> index e66358b64ede..4090d7afcda4 100644
>>> --- a/Makefile
>>> +++ b/Makefile
>>> @@ -238,12 +238,12 @@ ifeq ($(need-sub-make),)
>>> # so that IDEs/editors are able to understand relative filenames.
>>> MAKEFLAGS += --no-print-directory
>>>
>>> -ifeq ($(abs_srctree),$(abs_objtree))
>>> +ifeq ($(abs_srctree),$(CURDIR))
>>> # building in the source tree
>>> srctree := .
>>> building_out_of_srctree :=
>>> else
>>> - ifeq ($(abs_srctree)/,$(dir $(abs_objtree)))
>>> + ifeq ($(abs_srctree)/,$(dir $(CURDIR)))
>>> # building in a subdirectory of the source tree
>>> srctree := ..
>>> else
>>>
>>
>> Please resend cc'ing linux-kselftest
>>
>> thanks,
>> -- Shuah
>
>
> Please do not send this any more.
> This part is good as is.
>
+ linux-kselftest(a)vger.kernel.org
The reason I suggested resending cc'ing linux-kselftest is because
this fixes a kselftest problem.
I am assuming this patch will go through kbuild
Acked-by: Shuah Khan <skhan(a)linuxfoundation.org>
thanks,
-- Shuah