linux-kernel - [PATCH v3] PCI: hv: Make functions static

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Date:   Thu, 29 Aug 2019 11:17:13 +0200
From:   Krzysztof Wilczynski <kw@...ux.com>
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     "K. Y. Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Sasha Levin <sashal@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hyperv@...r.kernel.org
Subject: [PATCH v3] PCI: hv: Make functions static

Functions hv_read_config_block(), hv_write_config_block()
and hv_register_block_invalidate() are not used anywhere
else and are local to drivers/pci/controller/pci-hyperv.c,
and do not need to be in global scope, so make these static.

Resolve following compiler warning that can be seen when
building with warnings enabled (W=1):

drivers/pci/controller/pci-hyperv.c:933:5: warning:
 no previous prototype for ‘hv_read_config_block’
  [-Wmissing-prototypes]

drivers/pci/controller/pci-hyperv.c:1013:5: warning:
 no previous prototype for ‘hv_write_config_block’
  [-Wmissing-prototypes]

drivers/pci/controller/pci-hyperv.c:1082:5: warning:
 no previous prototype for ‘hv_register_block_invalidate’
  [-Wmissing-prototypes]

Signed-off-by: Krzysztof Wilczynski <kw@...ux.com>
---
Changes in v3:
  Commit message has been wrapped to fit 75 columns.
  Addressed formatting based on feedback from v2.

Changes in v2:
  Update commit message to include compiler warning.

 drivers/pci/controller/pci-hyperv.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c
index f1f300218fab..ba988fe033b5 100644
--- a/drivers/pci/controller/pci-hyperv.c
+++ b/drivers/pci/controller/pci-hyperv.c
@@ -930,8 +930,9 @@ 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,
@@ -1010,8 +1011,8 @@ 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,
@@ -1079,9 +1080,9 @@ 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,
@@ -1097,7 +1098,6 @@ int hv_register_block_invalidate(struct pci_dev *pdev, void *context,
 
 	put_pcichild(hpdev);
 	return 0;
-
 }
 
 /* Interrupt management hooks */
-- 
2.22.1