[bug report] PCI: rockchip: Add Rockchip PCIe controller support
Dan Carpenter
dan.carpenter at oracle.com
Wed Oct 12 03:54:34 PDT 2016
Hello Shawn Lin,
The patch e77f847df54c: "PCI: rockchip: Add Rockchip PCIe controller
support" from Sep 3, 2016, leads to the following static checker
warning:
drivers/pci/host/pcie-rockchip.c:552 rockchip_pcie_init_port()
warn: mask and shift to zero
drivers/pci/host/pcie-rockchip.c
549
550 /* Check the final link width from negotiated lane counter from MGMT */
551 status = rockchip_pcie_read(rockchip, PCIE_CORE_CTRL);
552 status = 0x1 << ((status & PCIE_CORE_PL_CONF_LANE_MASK) >>
553 PCIE_CORE_PL_CONF_LANE_MASK);
Presumably we should be shifting by PCIE_CORE_PL_CONF_LANE_SHIFT but
this still looks all kind of jumbled up.
554 dev_dbg(dev, "current link width is x%d\n", status);
555
regards,
dan carpenter
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