linux-kernel - Re: [PATCH] driver core: fix up some missing class.devnode() conversions.

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Date:   Tue, 29 Nov 2022 09:02:15 +0000
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        Frederic Barrat <fbarrat@...ux.ibm.com>,
        Andrew Donnellan <ajd@...ux.ibm.com>,
        Arnd Bergmann <arnd@...db.de>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>
Subject: Re: [PATCH] driver core: fix up some missing class.devnode()
 conversions.



Le 29/11/2022 à 09:27, Greg Kroah-Hartman a écrit :
> On Tue, Nov 29, 2022 at 06:33:04AM +0000, Christophe Leroy wrote:
>>
>>
>> Le 28/11/2022 à 18:35, Greg Kroah-Hartman a écrit :
>>> In commit ff62b8e6588f ("driver core: make struct class.devnode() take a
>>> const *") the ->devnode callback changed the pointer to be const, but a
>>> few instances of PowerPC drivers were not caught for some reason.
>>>
>>> Fix this up by changing the pointers to be const.
>>
>> Build fails:
>>
>> /linux/arch/powerpc/platforms/book3s/vas-api.c: In function
>> 'vas_register_coproc_api':
>> /linux/arch/powerpc/platforms/book3s/vas-api.c:590:31: error: assignment
>> from incompatible pointer type [-Werror=incompatible-pointer-types]
>>     coproc_device.class->devnode = coproc_devnode;
>>                                  ^
>> cc1: all warnings being treated as errors
> 
> What did you build this against?  It has to be be against my
> driver-core-next tree as that is where the Fixes: commit is.
> 

Failure was reported by powerpc patchwork : 
https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20221128173539.3112234-1-gregkh@linuxfoundation.org/