linux-kernel - Re: [PATCH 2/8] firmware: arm_scmi: Introduce packet handling helpers

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Message-ID: <202407081158.9B8bXpH0-lkp@intel.com>
Date: Mon, 8 Jul 2024 11:59:26 +0800
From: kernel test robot <lkp@...el.com>
To: Cristian Marussi <cristian.marussi@....com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	arm-scmi@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, sudeep.holla@....com,
	james.quinlan@...adcom.com, f.fainelli@...il.com,
	vincent.guittot@...aro.org, etienne.carriere@...s.st.com,
	peng.fan@....nxp.com, michal.simek@....com, quic_sibis@...cinc.com,
	quic_nkela@...cinc.com, ptosi@...gle.com, dan.carpenter@...aro.org,
	souvik.chakravarty@....com,
	Cristian Marussi <cristian.marussi@....com>
Subject: Re: [PATCH 2/8] firmware: arm_scmi: Introduce packet handling helpers

Hi Cristian,

kernel test robot noticed the following build warnings:

[auto build test WARNING on soc/for-next]
[also build test WARNING on next-20240703]
[cannot apply to linus/master v6.10-rc7]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Cristian-Marussi/firmware-arm_scmi-Introduce-setup_shmem_iomap/20240707-082513
base:   https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next
patch link:    https://lore.kernel.org/r/20240707002055.1835121-3-cristian.marussi%40arm.com
patch subject: [PATCH 2/8] firmware: arm_scmi: Introduce packet handling helpers
config: arm-randconfig-r111-20240708 (https://download.01.org/0day-ci/archive/20240708/202407081158.9B8bXpH0-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project a0c6b8aef853eedaa0980f07c0a502a5a8a9740e)
reproduce: (https://download.01.org/0day-ci/archive/20240708/202407081158.9B8bXpH0-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/202407081158.9B8bXpH0-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   drivers/firmware/arm_scmi/shmem.c:171:16: sparse: sparse: incorrect type in return expression (different address spaces) @@     expected void * @@     got void [noderef] __iomem *[assigned] addr @@
   drivers/firmware/arm_scmi/shmem.c:171:16: sparse:     expected void *
   drivers/firmware/arm_scmi/shmem.c:171:16: sparse:     got void [noderef] __iomem *[assigned] addr
>> drivers/firmware/arm_scmi/shmem.c:183:24: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void [noderef] __iomem *( *setup_iomap )( ... ) @@     got void *( [noderef] __iomem * )( ... ) @@
   drivers/firmware/arm_scmi/shmem.c:183:24: sparse:     expected void [noderef] __iomem *( *setup_iomap )( ... )
   drivers/firmware/arm_scmi/shmem.c:183:24: sparse:     got void *( [noderef] __iomem * )( ... )
   drivers/firmware/arm_scmi/shmem.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/xarray.h, ...):
   include/linux/page-flags.h:240:46: sparse: sparse: self-comparison always evaluates to false
   include/linux/page-flags.h:240:46: sparse: sparse: self-comparison always evaluates to false

vim +183 drivers/firmware/arm_scmi/shmem.c

   173	
   174	const struct scmi_shared_mem_operations scmi_shmem_ops = {
   175		.tx_prepare = shmem_tx_prepare,
   176		.read_header = shmem_read_header,
   177		.fetch_response = shmem_fetch_response,
   178		.fetch_notification = shmem_fetch_notification,
   179		.clear_channel = shmem_clear_channel,
   180		.poll_done = shmem_poll_done,
   181		.channel_free = shmem_channel_free,
   182		.channel_intr_enabled = shmem_channel_intr_enabled,
 > 183		.setup_iomap = shmem_setup_iomap,

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki