linux-kernel - Re: drivers/fwctl/pds/main.c:113:65: sparse: sparse: restricted _

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Message-ID: <9f7ba2e9-58d8-499e-a67b-c79a647eafc7@amd.com>
Date: Wed, 2 Apr 2025 08:57:04 -0700
From: "Nelson, Shannon" <shannon.nelson@....com>
To: Jason Gunthorpe <jgg@...pe.ca>, kernel test robot <lkp@...el.com>
Cc: Brett Creeley <brett.creeley@....com>, oe-kbuild-all@...ts.linux.dev,
 linux-kernel@...r.kernel.org, Leon Romanovsky <leonro@...dia.com>,
 Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: Re: drivers/fwctl/pds/main.c:113:65: sparse: sparse: restricted
 __le32 degrades to integer

On 4/2/2025 5:28 AM, Jason Gunthorpe wrote:
> 
> On Wed, Apr 02, 2025 at 02:46:38AM +0800, kernel test robot wrote:
>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>> head:   08733088b566b58283f0f12fb73f5db6a9a9de30
>> commit: 92c66ee829b99a860a90f62ef16df3e42f92edac pds_fwctl: add rpc and query support
>> date:   11 days ago
>> config: loongarch-randconfig-r111-20250401 (https://download.01.org/0day-ci/archive/20250402/202504020246.Dfbhxoo9-lkp@intel.com/config)
>> compiler: loongarch64-linux-gcc (GCC) 14.2.0
>> reproduce: (https://download.01.org/0day-ci/archive/20250402/202504020246.Dfbhxoo9-lkp@intel.com/reproduce)
>>
>> If you fix the issue in a separate patch/commit (i.e. not just a new version of
>> the same patch/commit), kindly add following tags
>> | Reported-by: kernel test robot <lkp@...el.com>
>> | Closes: https://lore.kernel.org/oe-kbuild-all/202504020246.Dfbhxoo9-lkp@intel.com/
> 
> Shannon, can you send a patch to fix all the sparse errors?
> 
> Thanks

Yes, I have one mostly ready, should get it sent out later today.
sln


> 
>> sparse warnings: (new ones prefixed by >>)
>>>> drivers/fwctl/pds/main.c:113:65: sparse: sparse: restricted __le32 degrades to integer
>>>> drivers/fwctl/pds/main.c:202:50: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned int [usertype] endpoint @@     got restricted __le32 [usertype] id @@
>>     drivers/fwctl/pds/main.c:202:50: sparse:     expected unsigned int [usertype] endpoint
>>     drivers/fwctl/pds/main.c:202:50: sparse:     got restricted __le32 [usertype] id
>>     drivers/fwctl/pds/main.c:250:29: sparse: sparse: restricted __le32 degrades to integer
>>     drivers/fwctl/pds/main.c:288:39: sparse: sparse: restricted __le32 degrades to integer
>>     drivers/fwctl/pds/main.c:294:40: sparse: sparse: restricted __le32 degrades to integer
>>     drivers/fwctl/pds/main.c:300:41: sparse: sparse: restricted __le32 degrades to integer
>>     drivers/fwctl/pds/main.c:329:44: sparse: sparse: restricted __le32 degrades to integer
>>>> drivers/fwctl/pds/main.c:330:21: sparse: sparse: cast to restricted __le32
>>     drivers/fwctl/pds/main.c:330:21: sparse: sparse: restricted __le32 degrades to integer
>>     drivers/fwctl/pds/main.c:330:21: sparse: sparse: restricted __le32 degrades to integer
>>>> drivers/fwctl/pds/main.c:330:21: sparse: sparse: cast to restricted __le32
>>     drivers/fwctl/pds/main.c:330:21: sparse: sparse: restricted __le32 degrades to integer
>>     drivers/fwctl/pds/main.c:330:21: sparse: sparse: restricted __le32 degrades to integer
>>>> drivers/fwctl/pds/main.c:405:56: sparse: sparse: incorrect type in initializer (different base types) @@     expected restricted __le16 [usertype] flags @@     got int @@
>>     drivers/fwctl/pds/main.c:405:56: sparse:     expected restricted __le16 [usertype] flags
>>     drivers/fwctl/pds/main.c:405:56: sparse:     got int