From: kernel test robot <lkp@intel.com>
To: Jorge Marques <jorge.marques@analog.com>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
linux-kernel@vger.kernel.org,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Frank Li <Frank.Li@nxp.com>
Subject: drivers/i3c/master/../internals.h:53:9: error: passing 'const void *' to parameter of type 'void *' discards qualifiers
Date: Mon, 1 Sep 2025 14:25:03 +0800 [thread overview]
Message-ID: <202509011442.yweEPWw4-lkp@intel.com> (raw)
Hi Jorge,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: b320789d6883cc00ac78ce83bccbfe7ed58afcf0
commit: c20d3fa7049144f519b21616e6020e6939822145 i3c: master: cdns: Use i3c_writel_fifo() and i3c_readl_fifo()
date: 5 weeks ago
config: sparc64-randconfig-001-20250901 (https://download.01.org/0day-ci/archive/20250901/202509011442.yweEPWw4-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250901/202509011442.yweEPWw4-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202509011442.yweEPWw4-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from drivers/i3c/master/i3c-master-cdns.c:26:
>> drivers/i3c/master/../internals.h:53:9: error: passing 'const void *' to parameter of type 'void *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
53 | readsl(addr, buf, nbytes / 4);
| ^~~~
arch/sparc/include/asm/io_64.h:265:41: note: passing argument to parameter 'port' here
265 | static inline void readsl(void __iomem *port, void *buf, unsigned long count)
| ^
1 error generated.
vim +53 drivers/i3c/master/../internals.h
733b439375b494 Jorge Marques 2025-06-24 43
733b439375b494 Jorge Marques 2025-06-24 44 /**
733b439375b494 Jorge Marques 2025-06-24 45 * i3c_readl_fifo - Read data buffer from 32bit FIFO
733b439375b494 Jorge Marques 2025-06-24 46 * @addr: FIFO Address to read from
733b439375b494 Jorge Marques 2025-06-24 47 * @buf: Pointer to the buffer to store read bytes
733b439375b494 Jorge Marques 2025-06-24 48 * @nbytes: Number of bytes to read
733b439375b494 Jorge Marques 2025-06-24 49 */
733b439375b494 Jorge Marques 2025-06-24 50 static inline void i3c_readl_fifo(const void __iomem *addr, void *buf,
733b439375b494 Jorge Marques 2025-06-24 51 int nbytes)
733b439375b494 Jorge Marques 2025-06-24 52 {
733b439375b494 Jorge Marques 2025-06-24 @53 readsl(addr, buf, nbytes / 4);
733b439375b494 Jorge Marques 2025-06-24 54 if (nbytes & 3) {
733b439375b494 Jorge Marques 2025-06-24 55 u32 tmp;
733b439375b494 Jorge Marques 2025-06-24 56
733b439375b494 Jorge Marques 2025-06-24 57 tmp = readl(addr);
733b439375b494 Jorge Marques 2025-06-24 58 memcpy(buf + (nbytes & ~3), &tmp, nbytes & 3);
733b439375b494 Jorge Marques 2025-06-24 59 }
733b439375b494 Jorge Marques 2025-06-24 60 }
733b439375b494 Jorge Marques 2025-06-24 61
:::::: The code at line 53 was first introduced by commit
:::::: 733b439375b494e8a6950ab47d18a4b615b73cb3 i3c: master: Add inline i3c_readl_fifo() and i3c_writel_fifo()
:::::: TO: Jorge Marques <jorge.marques@analog.com>
:::::: CC: Alexandre Belloni <alexandre.belloni@bootlin.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2025-09-01 6:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-01 6:25 kernel test robot [this message]
2025-09-01 7:26 ` drivers/i3c/master/../internals.h:53:9: error: passing 'const void *' to parameter of type 'void *' discards qualifiers Alexandre Belloni
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