sparse report build warning as follows: drivers/pci/controller/pci-hyperv.c:941:5: warning: symbol 'hv_read_config_block' was not declared. Should it be static? drivers/pci/controller/pci-hyperv.c:1021:5: warning: symbol 'hv_write_config_block' was not declared. Should it be static? drivers/pci/controller/pci-hyperv.c:1090:5: warning: symbol 'hv_register_block_invalidate' was not declared. Should it be static? Those functions are not used outside of this file, so mark them static. Reported-by: Hulk Robot <hulkci@xxxxxxxxxx> Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx> --- drivers/pci/controller/pci-hyperv.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c index bf40ff09c99d..5c496b93cea9 100644 --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -938,8 +938,9 @@ static void hv_pci_read_config_compl(void *context, struct pci_response *resp, * * Return: 0 on success, -errno on failure */ -int hv_read_config_block(struct pci_dev *pdev, void *buf, unsigned int len, - unsigned int block_id, unsigned int *bytes_returned) +static int hv_read_config_block(struct pci_dev *pdev, void *buf, + unsigned int len, unsigned int block_id, + unsigned int *bytes_returned) { struct hv_pcibus_device *hbus = container_of(pdev->bus->sysdata, struct hv_pcibus_device, @@ -1018,8 +1019,8 @@ static void hv_pci_write_config_compl(void *context, struct pci_response *resp, * * Return: 0 on success, -errno on failure */ -int hv_write_config_block(struct pci_dev *pdev, void *buf, unsigned int len, - unsigned int block_id) +static int hv_write_config_block(struct pci_dev *pdev, void *buf, + unsigned int len, unsigned int block_id) { struct hv_pcibus_device *hbus = container_of(pdev->bus->sysdata, struct hv_pcibus_device, @@ -1087,9 +1088,9 @@ int hv_write_config_block(struct pci_dev *pdev, void *buf, unsigned int len, * * Return: 0 on success, -errno on failure */ -int hv_register_block_invalidate(struct pci_dev *pdev, void *context, - void (*block_invalidate)(void *context, - u64 block_mask)) +static int hv_register_block_invalidate(struct pci_dev *pdev, void *context, + void (*block_invalidate)(void *context, + u64 block_mask)) { struct hv_pcibus_device *hbus = container_of(pdev->bus->sysdata, struct hv_pcibus_device,