linux-kernel - Re: [PATCH v2] staging: rtl8192u: Remove broken driver

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Message-ID: <3d1355bc-d359-4ff6-aee1-fbc84437efec@leemhuis.info>
Date:   Tue, 17 Oct 2023 07:33:49 +0200
From:   Thorsten Leemhuis <linux@...mhuis.info>
To:     Philipp Hortmann <philipp.g.hortmann@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Cc:     Arnd Bergmann <arnd@...db.de>, Kalle Valo <kvalo@...nel.org>,
        Larry Finger <Larry.Finger@...inger.net>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: [PATCH v2] staging: rtl8192u: Remove broken driver

On 14.10.23 23:10, Philipp Hortmann wrote:
> Tests on rtl8192u hardware have shown that this driver is broken since
> 2016. Remove broken driver. Find fix for two bugs in second link.
> 
> Link: https://lore.kernel.org/lkml/db98d9ac-7650-4a72-8eb9-4def1f17ea0d@app.fastmail.com/
> Link: https://lore.kernel.org/lkml/cover.1697089416.git.philipp.g.hortmann@gmail.com/
> Signed-off-by: Philipp Hortmann <philipp.g.hortmann@...il.com>
> ---
> V2: Added 2x links and adapted description.
> 
> Did not find any artifacts of rtl8192u in MAINTAINERS.
> ---
>  drivers/staging/Kconfig                       |    2 -
>  drivers/staging/rtl8192u/Kconfig              |   12 -
> [...]

My daily linux-next builds for Fedora (based on Fedora rawhide config)
failed today with this error msg:

"""
+ /usr/bin/make -s 'HOSTCFLAGS=-O2  -fexceptions -g
-grecord-gcc-switches -pipe -Wall -Werror=format-security
-Werror=implicit-function-declaration -Werror=implicit-int
-Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -mcpu=power8
-mtune=power8 -fasynchronous-unwind-tables -fstack-clash-protection '
'HOSTLDFLAGS=-Wl,-z,relro -Wl,--as-needed  -Wl,-z,now
-specs=/usr/lib/rpm/redhat/redhat-hardened-ld
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -Wl,--build-id=sha1
-specs=/usr/lib/rpm/redhat/redhat-package-notes ' -j2 mrproper
scripts/Makefile.clean:12: drivers/staging/rtl8192u/Makefile: No such
file or directory
make[5]: *** No rule to make target 'drivers/staging/rtl8192u/Makefile'.
 Stop.
make[4]: *** [scripts/Makefile.clean:61: drivers/staging/rtl8192u] Error 2
make[3]: *** [scripts/Makefile.clean:61: drivers/staging] Error 2
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [scripts/Makefile.clean:61: drivers] Error 2
make[1]: ***
[/builddir/build/BUILD/kernel-next-20231017/linux-6.6.0-0.0.next.20231017.447.vanilla.fc40.ppc64le/Makefile:1920:
_clean_.] Error 2
make: *** [Makefile:236: __sub-make] Error 2
error: Bad exit status from /var/tmp/rpm-tmp.TJDlJV (%build)
"""

Full log:
https://copr-be.cloud.fedoraproject.org/results/@kernel-vanilla/next/fedora-rawhide-ppc64le/06536998-next-next-all/builder-live.log.gz

Made me wonder if this patch left something behind; a quick grep showed
something suspicious in drivers/staging/Makefile:
"""
obj-$(CONFIG_RTL8192U)		+= rtl8192u/
"""

Ciao, Thorsten