linux-kernel - Re: [PATCH 2/2] crypto: hisilicon

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Date:   Thu, 19 Sep 2019 16:11:13 +0800
From:   Zhou Wang <wangzhou1@...ilicon.com>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        Arnd Bergmann <arnd@...db.de>
CC:     "David S. Miller" <davem@...emloft.net>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Hao Fang <fanghao11@...wei.com>,
        Kenneth Lee <liguozhu@...ilicon.com>,
        <linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] crypto: hisilicon - avoid unused function warning

On 2019/9/13 17:17, Herbert Xu wrote:
> On Fri, Sep 06, 2019 at 05:22:30PM +0200, Arnd Bergmann wrote:
>> The only caller of hisi_zip_vf_q_assign() is hidden in an #ifdef,
>> so the function causes a warning when CONFIG_PCI_IOV is disabled:
>>
>> drivers/crypto/hisilicon/zip/zip_main.c:740:12: error: unused function 'hisi_zip_vf_q_assign' [-Werror,-Wunused-function]
>>
>> Move it into the same #ifdef.
>>
>> Fixes: 79e09f30eeba ("crypto: hisilicon - add SRIOV support for ZIP")
>> Signed-off-by: Arnd Bergmann <arnd@...db.de>
>> ---
>>  drivers/crypto/hisilicon/zip/zip_main.c | 2 ++
>>  1 file changed, 2 insertions(+)
> 
> Please find a way to fix this warning without reducing compiler
> coverage.  I prefer to see any compile issues immediately rather
> than through automated build testing.
> 
> Thanks,
>

Sorry for missing this patch.

Seems other drivers also do like using #ifdef. Do you mean something like this:
#ifdef CONFIG_PCI_IOV
sriov_enable()
...
#else
/* stub */
sriov_enable()
...
#endif

Best,
Zhou