[jmondi:jmondi/rpi5-be-upstream/libcamera 30/131] drivers/pci/controller/pcie-brcmstb.c:473:6: warning: variable 'ret' set but not used

[jmondi:jmondi/rpi5-be-upstream/libcamera 30/131] drivers/pci/controller/pcie-brcmstb.c:473:6: warning: variable 'ret' set but not used

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jmondi/linux.git jmondi/rpi5-be-upstream/libcamera
head:   a7bec0179c6915e1140ede4bd0ceae507b80112e
commit: e53645fcc7971ea226e563350bea786852e7b572 [30/131] PCI: brcmstb: Add BCM2712 support
config: i386-buildonly-randconfig-001-20240128 (https://download.01.org/0day-ci/archive/20240128/202401280836.i4C3FyZ1-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240128/202401280836.i4C3FyZ1-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/202401280836.i4C3FyZ1-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/pci/controller/pcie-brcmstb.c:473:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
     473 |         int ret, i;
         |             ^
   1 warning generated.


vim +/ret +473 drivers/pci/controller/pcie-brcmstb.c

   463	
   464	static void brcm_pcie_munge_pll(struct brcm_pcie *pcie)
   465	{
   466		//print "MDIO block 0x1600 written per Dannys instruction"
   467		//tmp = pcie_mdio_write(phyad, &h16&, &h50b9&)
   468		//tmp = pcie_mdio_write(phyad, &h17&, &hbd1a&)
   469		//tmp = pcie_mdio_write(phyad, &h1b&, &h5030&)
   470		//tmp = pcie_mdio_write(phyad, &h1e&, &h0007&)
   471	
   472		u32 tmp;
 > 473		int ret, i;
   474		u8 regs[] =  { 0x16,   0x17,   0x18,   0x19,   0x1b,   0x1c,   0x1e };
   475		u16 data[] = { 0x50b9, 0xbda1, 0x0094, 0x97b4, 0x5030, 0x5030, 0x0007 };
   476	
   477		ret = brcm_pcie_mdio_write(pcie->base, MDIO_PORT0, SET_ADDR_OFFSET,
   478					0x1600);
   479		for (i = 0; i < ARRAY_SIZE(regs); i++) {
   480			brcm_pcie_mdio_read(pcie->base, MDIO_PORT0, regs[i], &tmp);
   481			dev_dbg(pcie->dev, "PCIE MDIO pre_refclk 0x%02x = 0x%04x\n",
   482				regs[i], tmp);
   483		}
   484		for (i = 0; i < ARRAY_SIZE(regs); i++) {
   485			brcm_pcie_mdio_write(pcie->base, MDIO_PORT0, regs[i], data[i]);
   486			brcm_pcie_mdio_read(pcie->base, MDIO_PORT0, regs[i], &tmp);
   487			dev_dbg(pcie->dev, "PCIE MDIO post_refclk 0x%02x = 0x%04x\n",
   488				regs[i], tmp);
   489		}
   490		usleep_range(100, 200);
   491	}
   492	

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