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Re: [PATCH V2 1/2] brcmfmac: modify __brcmf_err() to take bus as a parameter

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Rafał Miłecki <rafal@xxxxxxxxxx> writes:

> On 01.02.2019 13:14, Kalle Valo wrote:
>> Rafał Miłecki wrote:
>>
>>> From: Rafał Miłecki <rafal@xxxxxxxxxx>
>>>
>>> So far __brcmf_err() was using pr_err() which didn't allow identifying
>>> device that was affected by an error. It's crucial for systems with more
>>> than 1 device supported by brcmfmac (a common case for home routers).
>>>
>>> This change allows passing struct brcmf_bus to the __brcmf_err(). That
>>> struct has been agreed to be the most common one. It allows accessing
>>> struct device easily & using dev_err() printing helper.
>>>
>>> Signed-off-by: Rafał Miłecki <rafal@xxxxxxxxxx>
>>> Acked-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
>>
>> Fails to build for me:
>>
>> drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c: In function 'brcmf_pcie_pm_enter_D3':
>> drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c:1948:20: error: redeclaration of 'bus' with no linkage
>>    struct brcmf_bus *bus;
>>                      ^~~
>> drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c:1946:20: note: previous definition of 'bus' was here
>>    struct brcmf_bus *bus = dev_get_drvdata(dev);
>>                      ^~~
>> drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c: In function 'brcmf_pcie_pm_leave_D3':
>> drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c:1978:20: error: redeclaration of 'bus' with no linkage
>>    struct brcmf_bus *bus;
>>                      ^~~
>> drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c:1976:20: note: previous definition of 'bus' was here
>>    struct brcmf_bus *bus = dev_get_drvdata(dev);
>>                      ^~~
>> make[6]: *** [drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.o] Error 1
>> make[6]: *** Waiting for unfinished jobs....
>> drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c: In function '__brcmf_err':
>> drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c:35:15: error: dereferencing pointer to incomplete type 'struct brcmf_bus'
>>     dev_err(bus->dev, "%s: %pV", func, &vaf);
>>                 ^~
>
> I have no idea why my gcc didn't complain. Sorry.

No worries. Oddly kbuild bot didn't notice it either so the problem
might be on my end as well.

> I'll send V3.
>
> $ mips-suse-linux-gcc -v
> Using built-in specs.
> COLLECT_GCC=mips-suse-linux-gcc
> COLLECT_LTO_WRAPPER=/usr/lib64/gcc/mips-suse-linux/8/lto-wrapper
> Target: mips-suse-linux
> Configured with: ../configure --prefix=/usr --infodir=/usr/share/info
> --mandir=/usr/share/man --libdir=/usr/lib64 --libexecdir=/usr/lib64
> --enable-languages=c,c++ --enable-checking=release --disable-werror
> --with-gxx-include-dir=/usr/include/c++/8 --enable-ssp
> --disable-libssp --disable-libvtv --disable-libmpx --disable-cet
> --disable-libcc1 --disable-plugin
> --with-bugurl=http://bugs.opensuse.org/ --with-pkgversion='SUSE Linux'
> --with-slibdir=/lib64 --with-system-zlib
> --enable-libstdcxx-allocator=new --disable-libstdcxx-pch
> --enable-version-specific-runtime-libs --with-gcc-major-version-only
> --enable-linker-build-id --enable-linux-futex
> --enable-gnu-indirect-function --program-suffix=-8
> --program-prefix=mips-suse-linux- --target=mips-suse-linux
> --disable-nls --with-sysroot=/usr/mips-suse-linux
> --with-build-sysroot=/usr/mips-suse-linux
> --with-build-time-tools=/usr/mips-suse-linux/bin
> --build=x86_64-suse-linux --host=x86_64-suse-linux
> Thread model: posix
> gcc version 8.2.1 20181108 [gcc-8-branch revision 265914] (SUSE Linux)

Mine is:

Using built-in specs.
COLLECT_GCC=/opt/cross/gcc-7.3.0-nolibc/x86_64-linux/bin/x86_64-linux-x86_64-linux-gcc
COLLECT_LTO_WRAPPER=/opt/cross/gcc-7.3.0-nolibc/x86_64-linux/bin/../libexec/gcc/x86_64-linux/7.3.0/lto-wrapper
Target: x86_64-linux
Configured with: /home/arnd/git/gcc/configure --target=x86_64-linux --enable-targets=all --prefix=/opt/crosstool/gcc-7.3.0-nolibc/x86_64-linux --enable-languages=c --without-headers --disable-bootstrap --disable-nls --disable-threads --disable-shared --disable-libmudflap --disable-libssp --disable-libgomp --disable-decimal-float --disable-libquadmath --disable-libatomic --disable-libcc1 --disable-libmpx --enable-checking=release
Thread model: single

-- 
Kalle Valo




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