[stefandoesinger-zx297520:dlink 70/130] drivers/spi/spi-zx.c:477:24: warning: conversion from 'long unsigned int' to 'u32' {aka 'unsigned int'} changes value from '18446744073709551614' to '4294967294'

tree:   https://gitlab.com/stefandoesinger/zx297520-kernel dlink
head:   3d8eb1c72ad9937912307a2d4f3de812b572b9b3
commit: b3c8f8b4509d1bf92e5421480bedd0ade293d382 [70/130] zx29 qspi driver
config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20260728/[email protected]/config)
compiler: alpha-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260728/[email protected]/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 <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All warnings (new ones prefixed by >>):

   drivers/spi/spi-zx.c: In function 'zx_qspi_remove':
>> drivers/spi/spi-zx.c:477:24: warning: conversion from 'long unsigned int' to 'u32' {aka 'unsigned int'} changes value from '18446744073709551614' to '4294967294' [-Woverflow]
     477 |         writel_relaxed(~ZX_QSPI_EN, qspi->io_base + ZX_QSPI_EN_REG);


vim +477 drivers/spi/spi-zx.c

   473	
   474	static void zx_qspi_remove(struct platform_device *pdev)
   475	{
   476		struct zx_qspi *qspi = platform_get_drvdata(pdev);
 > 477		writel_relaxed(~ZX_QSPI_EN, qspi->io_base + ZX_QSPI_EN_REG);
   478	}
   479	

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