| Message ID | 20230711134354.755966-5-sui.jingfeng@linux.dev (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | PCI/VGA: Fix typos, comments and copyright | expand |
PING, please ! On 2023/7/11 21:43, Sui Jingfeng wrote: > From: Sui Jingfeng <suijingfeng@loongson.cn> > > In the vga_arbiter_notify_clients() function, the value of the 'new_state' > variable will be 'false' on systems that have more than one PCI VGA card. > Its value will be 'true' on systems that have one or no PCI VGA compatible > card. In other words, its value is not relevant to the iteration, so move > the assignment () out of the loop. > > For a system with multiple video cards, this patch saves the redundant > assignment. > > Signed-off-by: Sui Jingfeng <suijingfeng@loongson.cn> > --- > drivers/pci/vgaarb.c | 16 +++++++--------- > 1 file changed, 7 insertions(+), 9 deletions(-) > > diff --git a/drivers/pci/vgaarb.c b/drivers/pci/vgaarb.c > index 668139f7c247..4c448c758bab 100644 > --- a/drivers/pci/vgaarb.c > +++ b/drivers/pci/vgaarb.c > @@ -1468,22 +1468,20 @@ static void vga_arbiter_notify_clients(void) > { > struct vga_device *vgadev; > unsigned long flags; > - uint32_t new_decodes; > - bool new_state; > + bool state; > > if (!vga_arbiter_used) > return; > > + state = (vga_count > 1) ? false : true; > + > spin_lock_irqsave(&vga_lock, flags); > list_for_each_entry(vgadev, &vga_list, list) { > - if (vga_count > 1) > - new_state = false; > - else > - new_state = true; > if (vgadev->set_decode) { > - new_decodes = vgadev->set_decode(vgadev->pdev, > - new_state); > - vga_update_device_decodes(vgadev, new_decodes); > + unsigned int decodes; > + > + decodes = vgadev->set_decode(vgadev->pdev, state); > + vga_update_device_decodes(vgadev, decodes); > } > } > spin_unlock_irqrestore(&vga_lock, flags);
On Mon, Jul 24, 2023 at 09:02:14PM +0800, suijingfeng wrote: > PING, please ! Don't worry, these are not forgotten. Your other series seems more important, so that's what I've been paying attention to. > On 2023/7/11 21:43, Sui Jingfeng wrote: > > From: Sui Jingfeng <suijingfeng@loongson.cn> > > > > In the vga_arbiter_notify_clients() function, the value of the 'new_state' > > variable will be 'false' on systems that have more than one PCI VGA card. > > Its value will be 'true' on systems that have one or no PCI VGA compatible > > card. In other words, its value is not relevant to the iteration, so move > > the assignment () out of the loop. > > > > For a system with multiple video cards, this patch saves the redundant > > assignment. > > > > Signed-off-by: Sui Jingfeng <suijingfeng@loongson.cn> > > --- > > drivers/pci/vgaarb.c | 16 +++++++--------- > > 1 file changed, 7 insertions(+), 9 deletions(-) > > > > diff --git a/drivers/pci/vgaarb.c b/drivers/pci/vgaarb.c > > index 668139f7c247..4c448c758bab 100644 > > --- a/drivers/pci/vgaarb.c > > +++ b/drivers/pci/vgaarb.c > > @@ -1468,22 +1468,20 @@ static void vga_arbiter_notify_clients(void) > > { > > struct vga_device *vgadev; > > unsigned long flags; > > - uint32_t new_decodes; > > - bool new_state; > > + bool state; > > if (!vga_arbiter_used) > > return; > > + state = (vga_count > 1) ? false : true; > > + > > spin_lock_irqsave(&vga_lock, flags); > > list_for_each_entry(vgadev, &vga_list, list) { > > - if (vga_count > 1) > > - new_state = false; > > - else > > - new_state = true; > > if (vgadev->set_decode) { > > - new_decodes = vgadev->set_decode(vgadev->pdev, > > - new_state); > > - vga_update_device_decodes(vgadev, new_decodes); > > + unsigned int decodes; > > + > > + decodes = vgadev->set_decode(vgadev->pdev, state); > > + vga_update_device_decodes(vgadev, decodes); > > } > > } > > spin_unlock_irqrestore(&vga_lock, flags); >
diff --git a/drivers/pci/vgaarb.c b/drivers/pci/vgaarb.c index 668139f7c247..4c448c758bab 100644 --- a/drivers/pci/vgaarb.c +++ b/drivers/pci/vgaarb.c @@ -1468,22 +1468,20 @@ static void vga_arbiter_notify_clients(void) { struct vga_device *vgadev; unsigned long flags; - uint32_t new_decodes; - bool new_state; + bool state; if (!vga_arbiter_used) return; + state = (vga_count > 1) ? false : true; + spin_lock_irqsave(&vga_lock, flags); list_for_each_entry(vgadev, &vga_list, list) { - if (vga_count > 1) - new_state = false; - else - new_state = true; if (vgadev->set_decode) { - new_decodes = vgadev->set_decode(vgadev->pdev, - new_state); - vga_update_device_decodes(vgadev, new_decodes); + unsigned int decodes; + + decodes = vgadev->set_decode(vgadev->pdev, state); + vga_update_device_decodes(vgadev, decodes); } } spin_unlock_irqrestore(&vga_lock, flags);