PCI/VGA: Correct vga_update_device_decodes() parameter type

Previously vga_update_device_decodes() took "int new_decodes", but the
callers pass "unsigned int new_decodes".  Correct the
vga_update_device_decodes() parameter type to "unsigned int" to match.

In vga_arbiter_notify_clients(), the return from vgadev->set_decode() is
"unsigned int" but was stored as "uint32_t new_decodes".  Correct the
new_decodes type to "unsigned int".

[bhelgaas: use correct type for ->set_decode() return, commit log]
Link: https://lore.kernel.org/r/20230808223412.1743176-5-sui.jingfeng@linux.dev
Signed-off-by: Sui Jingfeng <suijingfeng@loongson.cn>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/drivers/pci/vgaarb.c b/drivers/pci/vgaarb.c
index c1bc6c9..443cf1a 100644 (file)
--- a/drivers/pci/vgaarb.c
+++ b/drivers/pci/vgaarb.c
@@ -864,24 +864,23 @@ bail:
        return ret;
 }
 
-/* this is called with the lock */
-static inline void vga_update_device_decodes(struct vga_device *vgadev,
-                                            int new_decodes)
+/* This is called with the lock */
+static void vga_update_device_decodes(struct vga_device *vgadev,
+                                     unsigned int new_decodes)
 {
        struct device *dev = &vgadev->pdev->dev;
-       int old_decodes, decodes_removed, decodes_unlocked;
+       unsigned int old_decodes = vgadev->decodes;
+       unsigned int decodes_removed = ~new_decodes & old_decodes;
+       unsigned int decodes_unlocked = vgadev->locks & decodes_removed;
 
-       old_decodes = vgadev->decodes;
-       decodes_removed = ~new_decodes & old_decodes;
-       decodes_unlocked = vgadev->locks & decodes_removed;
        vgadev->decodes = new_decodes;
 
-       vgaarb_info(dev, "changed VGA decodes: olddecodes=%s,decodes=%s:owns=%s\n",
-               vga_iostate_to_str(old_decodes),
-               vga_iostate_to_str(vgadev->decodes),
-               vga_iostate_to_str(vgadev->owns));
+       vgaarb_info(dev, "VGA decodes changed: olddecodes=%s,decodes=%s:owns=%s\n",
+                   vga_iostate_to_str(old_decodes),
+                   vga_iostate_to_str(vgadev->decodes),
+                   vga_iostate_to_str(vgadev->owns));
 
-       /* if we removed locked decodes, lock count goes to zero, and release */
+       /* If we removed locked decodes, lock count goes to zero, and release */
        if (decodes_unlocked) {
                if (decodes_unlocked & VGA_RSRC_LEGACY_IO)
                        vgadev->io_lock_cnt = 0;
@@ -1472,7 +1471,7 @@ static void vga_arbiter_notify_clients(void)
 {
        struct vga_device *vgadev;
        unsigned long flags;
-       uint32_t new_decodes;
+       unsigned int new_decodes;
        bool new_state;
 
        if (!vga_arbiter_used)