Commit 80f349ce authored by Hans de Goede's avatar Hans de Goede Committed by Alex Deucher

drm/radeon: Bail earlier when radeon.cik_/si_support=0 is passed

Bail from the pci_driver probe function instead of from the drm_driver
load function.

This avoid /dev/dri/card0 temporarily getting registered and then
unregistered again, sending unwanted add / remove udev events to
userspace.

Specifically this avoids triggering the (userspace) bug fixed by this
plymouth merge-request:
https://gitlab.freedesktop.org/plymouth/plymouth/merge_requests/59

Note that despite that being an userspace bug, not sending unnecessary
udev events is a good idea in general.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1490490Reviewed-by: default avatarMichel Dänzer <mdaenzer@redhat.com>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 60233044
......@@ -323,8 +323,39 @@ bool radeon_device_is_virtual(void);
static int radeon_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
unsigned long flags = 0;
int ret;
if (!ent)
return -ENODEV; /* Avoid NULL-ptr deref in drm_get_pci_dev */
flags = ent->driver_data;
if (!radeon_si_support) {
switch (flags & RADEON_FAMILY_MASK) {
case CHIP_TAHITI:
case CHIP_PITCAIRN:
case CHIP_VERDE:
case CHIP_OLAND:
case CHIP_HAINAN:
dev_info(&pdev->dev,
"SI support disabled by module param\n");
return -ENODEV;
}
}
if (!radeon_cik_support) {
switch (flags & RADEON_FAMILY_MASK) {
case CHIP_KAVERI:
case CHIP_BONAIRE:
case CHIP_HAWAII:
case CHIP_KABINI:
case CHIP_MULLINS:
dev_info(&pdev->dev,
"CIK support disabled by module param\n");
return -ENODEV;
}
}
if (vga_switcheroo_client_probe_defer(pdev))
return -EPROBE_DEFER;
......
......@@ -100,31 +100,6 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
struct radeon_device *rdev;
int r, acpi_status;
if (!radeon_si_support) {
switch (flags & RADEON_FAMILY_MASK) {
case CHIP_TAHITI:
case CHIP_PITCAIRN:
case CHIP_VERDE:
case CHIP_OLAND:
case CHIP_HAINAN:
dev_info(dev->dev,
"SI support disabled by module param\n");
return -ENODEV;
}
}
if (!radeon_cik_support) {
switch (flags & RADEON_FAMILY_MASK) {
case CHIP_KAVERI:
case CHIP_BONAIRE:
case CHIP_HAWAII:
case CHIP_KABINI:
case CHIP_MULLINS:
dev_info(dev->dev,
"CIK support disabled by module param\n");
return -ENODEV;
}
}
rdev = kzalloc(sizeof(struct radeon_device), GFP_KERNEL);
if (rdev == NULL) {
return -ENOMEM;
......
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