linux-kernel - Re: [BUILD REGRESSION] building single .ko not working in 5.3-rc1

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Date:   Fri, 2 Aug 2019 19:26:06 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Arend Van Spriel <arend.vanspriel@...adcom.com>
Cc:     Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [BUILD REGRESSION] building single .ko not working in 5.3-rc1

On Fri, Aug 2, 2019 at 6:26 PM Arend Van Spriel
<arend.vanspriel@...adcom.com> wrote:
>
> In previous kernel versions I could do:
>
> make M=net/wireless cfg80211.ko
>
> However, in 5.3-rc1 I now get:
>
> $ make M=net/wireless cfg80211.ko
> make[1]: *** No rule to make target `cfg80211.ko'.  Stop.
> make: *** [sub-make] Error 2
>
> The 'modules' target is working, but sometimes there are multiple
> modules and I only want to build just one explicitly. Can this option be
> restored?

Please test this:
https://patchwork.kernel.org/patch/11073103/


BTW,
'make M=net/wireless cfg80211.ko' still works,
but if you  build a single module in the kernel tree,

make net/wireless/cfg80211.ko

is more correct.

M= is used for external modules.




> Regards,
> Arend



-- 
Best Regards
Masahiro Yamada