linux-kernel - [tip:irq/drivers 14/14] drivers/irqchip/irq-sg2042-msi.c:101:40: sparse: sparse: incorrect type in argument 2 (different address spaces)

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>] [day] [month] [year] [list]

Message-ID: <202504211251.B3aesulq-lkp@intel.com>
Date: Mon, 21 Apr 2025 13:00:29 +0800
From: kernel test robot <lkp@...el.com>
To: Inochi Amaoto <inochiama@...il.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	x86@...nel.org, Thomas Gleixner <tglx@...utronix.de>,
	Chen Wang <unicorn_wang@...look.com>
Subject: [tip:irq/drivers 14/14] drivers/irqchip/irq-sg2042-msi.c:101:40:
 sparse: sparse: incorrect type in argument 2 (different address spaces)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/drivers
head:   e96b93a97c90181627cef6e70a0dbc8dbdae4adc
commit: e96b93a97c90181627cef6e70a0dbc8dbdae4adc [14/14] irqchip/sg2042-msi: Add the Sophgo SG2044 MSI interrupt controller
config: arm64-randconfig-r123-20250421 (https://download.01.org/0day-ci/archive/20250421/202504211251.B3aesulq-lkp@intel.com/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8)
reproduce: (https://download.01.org/0day-ci/archive/20250421/202504211251.B3aesulq-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/202504211251.B3aesulq-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   drivers/irqchip/irq-sg2042-msi.c:101:20: sparse: sparse: cast removes address space '__iomem' of expression
>> drivers/irqchip/irq-sg2042-msi.c:101:40: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *addr @@     got unsigned int [usertype] * @@
   drivers/irqchip/irq-sg2042-msi.c:101:40: sparse:     expected void volatile [noderef] __iomem *addr
   drivers/irqchip/irq-sg2042-msi.c:101:40: sparse:     got unsigned int [usertype] *

vim +101 drivers/irqchip/irq-sg2042-msi.c

    96	
    97	static void sg2044_msi_irq_ack(struct irq_data *d)
    98	{
    99		struct sg204x_msi_chipdata *data = irq_data_get_irq_chip_data(d);
   100	
 > 101		writel(0, (u32 *)data->reg_clr + d->hwirq);
   102		irq_chip_ack_parent(d);
   103	}
   104	

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