drm: rip out dev->devname

This was only ever used to pretty-print the irq driver name. And on
kms systems due to set_version bonghits we never set up the prettier
name, ever. Which make this a bit pointless.

Also, we can always dig out the driver-instance/irq relationship
through other means, so this isn't that useful. So just rip it out to
simplify the set_version/set_busid insanity a bit.

Also delete the temporary busname from drm_pci_set_busid, it's now
unused.

v2: Rebase on top of the new host1x drm_bus for tegra.

Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 0 insertions, 25 deletions

diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c
index c550b349f202..047c51046d94 100644
--- a/drivers/gpu/drm/drm_pci.c
+++ b/drivers/gpu/drm/drm_pci.c
@@ -146,7 +146,6 @@ static const char *drm_pci_get_name(struct drm_device *dev)
 static int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master)
 {
         int len, ret;
-        struct pci_driver *pdriver = dev->driver->kdriver.pci;
         master->unique_len = 40;
         master->unique_size = master->unique_len;
         master->unique = kmalloc(master->unique_size, GFP_KERNEL);
@@ -168,18 +167,6 @@ static int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master)
         } else
                 master->unique_len = len;
 
-        dev->devname =
-                kmalloc(strlen(pdriver->name) +
-                        master->unique_len + 2, GFP_KERNEL);
-
-        if (dev->devname == NULL) {
-                ret = -ENOMEM;
-                goto err;
-        }
-
-        sprintf(dev->devname, "%s@%s", pdriver->name,
-                master->unique);
-
         return 0;
 err:
         return ret;
@@ -190,7 +177,6 @@ int drm_pci_set_unique(struct drm_device *dev,
                        struct drm_unique *u)
 {
         int domain, bus, slot, func, ret;
-        const char *bus_name;
 
         master->unique_len = u->unique_len;
         master->unique_size = u->unique_len + 1;
@@ -207,17 +193,6 @@ int drm_pci_set_unique(struct drm_device *dev,
 
         master->unique[master->unique_len] = '\0';
 
-        bus_name = dev->driver->bus->get_name(dev);
-        dev->devname = kmalloc(strlen(bus_name) +
-                               strlen(master->unique) + 2, GFP_KERNEL);
-        if (!dev->devname) {
-                ret = -ENOMEM;
-                goto err;
-        }
-
-        sprintf(dev->devname, "%s@%s", bus_name,
-                master->unique);
-
         /* Return error if the busid submitted doesn't match the device's actual
          * busid.
          */