[PATCH v3 1/4] PCI/VGA: tidy up the code and comment format

[Sui Jingfeng]

From: Sui Jingfeng <suijingfeng@xxxxxxxxxxx>

This patch replaces the leading space with a tab and removes the double
blank line, no functional change.

Signed-off-by: Sui Jingfeng <suijingfeng@xxxxxxxxxxx>
---
 drivers/pci/vgaarb.c   | 26 +++++++++++++-------------
 include/linux/vgaarb.h |  8 +++-----
 2 files changed, 16 insertions(+), 18 deletions(-)

diff --git a/drivers/pci/vgaarb.c b/drivers/pci/vgaarb.c
index 5a696078b382..bf2921e3cb06 100644
--- a/drivers/pci/vgaarb.c
+++ b/drivers/pci/vgaarb.c
@@ -61,7 +61,6 @@ static bool vga_arbiter_used;
 static DEFINE_SPINLOCK(vga_lock);
 static DECLARE_WAIT_QUEUE_HEAD(vga_wait_queue);
 
-
 static const char *vga_iostate_to_str(unsigned int iostate)
 {
 	/* Ignore VGA_RSRC_IO and VGA_RSRC_MEM */
@@ -80,7 +79,8 @@ static const char *vga_iostate_to_str(unsigned int iostate)
 static int vga_str_to_iostate(char *buf, int str_size, int *io_state)
 {
 	/* we could in theory hand out locks on IO and mem
-	 * separately to userspace but it can cause deadlocks */
+	 * separately to userspace but it can cause deadlocks
+	 */
 	if (strncmp(buf, "none", 4) == 0) {
 		*io_state = VGA_RSRC_NONE;
 		return 1;
@@ -99,7 +99,7 @@ static int vga_str_to_iostate(char *buf, int str_size, int *io_state)
 	return 1;
 }
 
-/* this is only used a cookie - it should not be dereferenced */
+/* This is only used as cookie, it should not be dereferenced */
 static struct pci_dev *vga_default;
 
 /* Find somebody in our list */
@@ -194,13 +194,15 @@ int vga_remove_vgacon(struct pci_dev *pdev)
 EXPORT_SYMBOL(vga_remove_vgacon);
 
 /* If we don't ever use VGA arb we should avoid
-   turning off anything anywhere due to old X servers getting
-   confused about the boot device not being VGA */
+ * turning off anything anywhere due to old X servers getting
+ * confused about the boot device not being VGA
+ */
 static void vga_check_first_use(void)
 {
 	/* we should inform all GPUs in the system that
 	 * VGA arb has occurred and to try and disable resources
-	 * if they can */
+	 * if they can
+	 */
 	if (!vga_arbiter_used) {
 		vga_arbiter_used = true;
 		vga_arbiter_notify_clients();
@@ -956,9 +958,9 @@ EXPORT_SYMBOL(vga_set_legacy_decoding);
  * @set_decode callback: If a client can disable its GPU VGA resource, it
  * will get a callback from this to set the encode/decode state.
  *
- * Rationale: we cannot disable VGA decode resources unconditionally some single
- * GPU laptops seem to require ACPI or BIOS access to the VGA registers to
- * control things like backlights etc.  Hopefully newer multi-GPU laptops do
+ * Rationale: we cannot disable VGA decode resources unconditionally, some
+ * single GPU laptops seem to require ACPI or BIOS access to the VGA registers
+ * to control things like backlights etc. Hopefully newer multi-GPU laptops do
  * something saner, and desktops won't have any special ACPI for this. The
  * driver will get a callback when VGA arbitration is first used by userspace
  * since some older X servers have issues.
@@ -988,7 +990,6 @@ int vga_client_register(struct pci_dev *pdev,
 bail:
 	spin_unlock_irqrestore(&vga_lock, flags);
 	return ret;
-
 }
 EXPORT_SYMBOL(vga_client_register);
 
@@ -1079,7 +1080,6 @@ static int vga_pci_str_to_vars(char *buf, int count, unsigned int *domain,
 	int n;
 	unsigned int slot, func;
 
-
 	n = sscanf(buf, "PCI:%x:%x:%x.%x", domain, bus, &slot, &func);
 	if (n != 4)
 		return 0;
@@ -1431,7 +1431,6 @@ static int vga_arb_open(struct inode *inode, struct file *file)
 	priv->cards[0].io_cnt = 0;
 	priv->cards[0].mem_cnt = 0;
 
-
 	return 0;
 }
 
@@ -1544,7 +1543,8 @@ static int __init vga_arb_device_init(void)
 	bus_register_notifier(&pci_bus_type, &pci_notifier);
 
 	/* We add all PCI devices satisfying VGA class in the arbiter by
-	 * default */
+	 * default
+	 */
 	pdev = NULL;
 	while ((pdev =
 		pci_get_subsys(PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
diff --git a/include/linux/vgaarb.h b/include/linux/vgaarb.h
index b4b9137f9792..d36225c582ee 100644
--- a/include/linux/vgaarb.h
+++ b/include/linux/vgaarb.h
@@ -23,9 +23,7 @@
  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS
- * IN THE SOFTWARE.
- *
+ * DEALINGS IN THE SOFTWARE.
  */
 
 #ifndef LINUX_VGA_H
@@ -96,7 +94,7 @@ static inline int vga_client_register(struct pci_dev *pdev,
 static inline int vga_get_interruptible(struct pci_dev *pdev,
 					unsigned int rsrc)
 {
-       return vga_get(pdev, rsrc, 1);
+	return vga_get(pdev, rsrc, 1);
 }
 
 /**
@@ -111,7 +109,7 @@ static inline int vga_get_interruptible(struct pci_dev *pdev,
 static inline int vga_get_uninterruptible(struct pci_dev *pdev,
 					  unsigned int rsrc)
 {
-       return vga_get(pdev, rsrc, 0);
+	return vga_get(pdev, rsrc, 0);
 }
 
 static inline void vga_client_unregister(struct pci_dev *pdev)
-- 
2.25.1