netdev - Re: [vhost:vhost 8/22] drivers/virtio/virtio_mem.c:1375:20: error: implicit declaration of function 'kzalloc'; did you mean 'vzalloc'?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 5 May 2020 18:22:51 +0200
From:   David Hildenbrand <david@...hat.com>
To:     "Michael S. Tsirkin" <mst@...hat.com>
Cc:     kbuild test robot <lkp@...el.com>, kbuild-all@...ts.01.org,
        kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
        netdev@...r.kernel.org, Pankaj Gupta <pankaj.gupta.linux@...il.com>
Subject: Re: [vhost:vhost 8/22] drivers/virtio/virtio_mem.c:1375:20: error:
 implicit declaration of function 'kzalloc'; did you mean 'vzalloc'?

On 05.05.20 18:20, Michael S. Tsirkin wrote:
> On Tue, May 05, 2020 at 05:46:44PM +0200, David Hildenbrand wrote:
>> On 05.05.20 17:44, Michael S. Tsirkin wrote:
>>> On Tue, May 05, 2020 at 04:50:13PM +0200, David Hildenbrand wrote:
>>>> On 05.05.20 16:15, kbuild test robot wrote:
>>>>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
>>>>> head:   da1742791d8c0c0a8e5471f181549c4726a5c5f9
>>>>> commit: 7527631e900d464ed2d533f799cb0da2b29cc6f0 [8/22] virtio-mem: Paravirtualized memory hotplug
>>>>> config: x86_64-randconfig-b002-20200505 (attached as .config)
>>>>> compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
>>>>> reproduce:
>>>>>         git checkout 7527631e900d464ed2d533f799cb0da2b29cc6f0
>>>>>         # save the attached .config to linux build tree
>>>>>         make ARCH=x86_64 
>>>>>
>>>>> If you fix the issue, kindly add following tag as appropriate
>>>>> Reported-by: kbuild test robot <lkp@...el.com>
>>>>>
>>>>> All error/warnings (new ones prefixed by >>):
>>>>>
>>>>>    drivers/virtio/virtio_mem.c: In function 'virtio_mem_probe':
>>>>>>> drivers/virtio/virtio_mem.c:1375:20: error: implicit declaration of function 'kzalloc'; did you mean 'vzalloc'? [-Werror=implicit-function-declaration]
>>>>>      vdev->priv = vm = kzalloc(sizeof(*vm), GFP_KERNEL);
>>>>>                        ^~~~~~~
>>>>>                        vzalloc
>>>>>>> drivers/virtio/virtio_mem.c:1375:18: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
>>>>>      vdev->priv = vm = kzalloc(sizeof(*vm), GFP_KERNEL);
>>>>>                      ^
>>>>>>> drivers/virtio/virtio_mem.c:1419:2: error: implicit declaration of function 'kfree'; did you mean 'vfree'? [-Werror=implicit-function-declaration]
>>>>>      kfree(vm);
>>>>>      ^~~~~
>>>>>      vfree
>>>>>    cc1: some warnings being treated as errors
>>>>>
>>>>> vim +1375 drivers/virtio/virtio_mem.c
>>>>
>>>> Guess we simply need
>>>>
>>>>  #include <linux/slab.h>
>>>>
>>>> to make it work for that config.
>>>
>>>
>>> OK I added that in the 1st commit that introduced virtio-mem.
>>
>> Thanks. I have some addon-patches ready, what's the best way to continue
>> with these?
> 
> If these are bugfixes, just respin the series (including this fix).

There are two really minor bugfixes for corner-case error handling and
one simplification. I can squash them and resend, makes things easier.

The other stuff I have are extensions, I will send as add-on.

Thanks!


-- 
Thanks,

David / dhildenb