linux-kernel - Re: drivers/remoteproc/st_remoteproc.c:114:20: sparse: sparse: incorrect type in argument 1 (different address spaces)

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Message-ID: <1e65634e-9184-d93f-6477-bbe96193a5e3@intel.com>
Date:   Wed, 9 Nov 2022 15:57:17 +0800
From:   "Chen, Rong A" <rong.a.chen@...el.com>
To:     Arnd Bergmann <arnd@...db.de>, kernel test robot <lkp@...el.com>,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Will Deacon <will@...nel.org>, Christoph Hellwig <hch@....de>,
        Russell King <rmk+kernel@...linux.org.uk>
Subject: Re: drivers/remoteproc/st_remoteproc.c:114:20: sparse: sparse:
 incorrect type in argument 1 (different address spaces)



On 11/9/2022 3:33 PM, Arnd Bergmann wrote:
> On Wed, Nov 9, 2022, at 04:54, kernel test robot wrote:
>> tree:
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>> master
>> head:   f141df371335645ce29a87d9683a3f79fba7fd67
>> commit: d803336abdbc1bfacdb32b2cf9f4fdbee072b8ee ARM: mm: kill unused
>> runtime hook arch_iounmap()
> 
> Thanks for the report, but I think it might be better to stop
> reporting address space violations from this patch, because it
> only started showing existing known issues with a slightly
> different error message, or flagging issues on arm32 that
> were previously shown on other architectures.

Hi Arnd,

Thanks for your advice, we'll add the commit to ignore list.

Best Regards,
Rong Chen

> 
>> sparse warnings: (new ones prefixed by >>)
>>     drivers/remoteproc/st_remoteproc.c:98:12: sparse: sparse: incorrect
>> type in assignment (different address spaces) @@     expected void *va
>> @@     got void [noderef] __iomem * @@
>>     drivers/remoteproc/st_remoteproc.c:98:12: sparse:     expected void
>> *va
>>     drivers/remoteproc/st_remoteproc.c:98:12: sparse:     got void
>> [noderef] __iomem *
>>>> drivers/remoteproc/st_remoteproc.c:114:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void volatile [noderef] __iomem *io_addr @@     got void *va @@
> 
>        Arnd
>