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[v3] PCI: qcom: Use __be16 type to store return value from cpu_to_be16()

Message ID 20211130080924.266116-1-manivannan.sadhasivam@linaro.org
State Accepted
Commit 3f13d611aa6be3a500d696b0699938dcb39a9887
Headers show
Series [v3] PCI: qcom: Use __be16 type to store return value from cpu_to_be16() | expand

Commit Message

Manivannan Sadhasivam Nov. 30, 2021, 8:09 a.m. UTC 
cpu_to_be16() returns __be16 value but the driver uses u16 and that's
incorrect. Fix it by using __be16 as the data type of bdf_be variable.

The issue was spotted by the below sparse warning:

sparse warnings: (new ones prefixed by >>)
>> drivers/pci/controller/dwc/pcie-qcom.c:1305:30: sparse: sparse: incorrect type in initializer (different base types) @@     expected unsigned short [usertype] bdf_be @@     got restricted __be16 [usertype] @@
   drivers/pci/controller/dwc/pcie-qcom.c:1305:30: sparse:     expected unsigned short [usertype] bdf_be
   drivers/pci/controller/dwc/pcie-qcom.c:1305:30: sparse:     got restricted __be16 [usertype]

Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---

Changes in v3:

* Added Krzysztof's reviewed-by tag and modified the commit message as per
his comments

Changes in v2:

* Modified the commit message and subject to describe the actual issue
as per comments from Bjorn.

 drivers/pci/controller/dwc/pcie-qcom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index 1c3d1116bb60..ddecd7f341c5 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -1343,7 +1343,7 @@  static int qcom_pcie_config_sid_sm8250(struct qcom_pcie *pcie)
 
 	/* Look for an available entry to hold the mapping */
 	for (i = 0; i < nr_map; i++) {
-		u16 bdf_be = cpu_to_be16(map[i].bdf);
+		__be16 bdf_be = cpu_to_be16(map[i].bdf);
 		u32 val;
 		u8 hash;