ODROID-COMMON: gpu/drm: remove 'drm_getunique'

[   17.429209] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000018
[   17.430106] Mem abort info:
[   17.430399]   ESR = 0x96000005
[   17.430717]   EC = 0x25: DABT (current EL), IL = 32 bits
[   17.431252]   SET = 0, FnV = 0
[   17.431567]   EA = 0, S1PTW = 0
[   17.431962] Data abort info:
[   17.432278]   ISV = 0, ISS = 0x00000005
[   17.432683]   CM = 0, WnR = 0
[   17.433006] user pgtable: 4k pages, 39-bit VAs, pgdp=00000001023fa000
[   17.433674] [0000000000000018] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000
[   17.434575] Internal error: Oops: 96000005 [#1] SMP
[   17.435107] Modules linked in: panfrost gpu_sched
[   17.435629] CPU: 3 PID: 537 Comm: kmscube Not tainted 5.10.160-odroid-arm64 #29
[   17.436372] Hardware name: Hardkernel ODROID-M1S (DT)
[   17.436885] pstate: 40400009 (nZcv daif +PAN -UAO -TCO BTYPE=--)
[   17.437496] pc : drm_getunique+0x38/0x98
[   17.437893] lr : drm_getunique+0x30/0x98
[   17.438288] sp : ffffffc00a5a3c20
[   17.438629] x29: ffffffc00a5a3c20 x28: 0000000000000010
[   17.439170] x27: 0000000000000010 x26: 0000007fd9927178
[   17.439708] x25: 00000000c0106401 x24: ffffffc00a5a3d28
[   17.440246] x23: ffffffc008614940 x22: ffffff8101e9c400
[   17.440784] x21: 0000000000000000 x20: ffffffc00a5a3d28
[   17.441322] x19: ffffff8101d418d0 x18: 0000000000000000
[   17.441870] x17: 0000000000000000 x16: 0000000000000000
[   17.442414] x15: 0000007fd9927178 x14: 0000000000000000
[   17.442954] x13: 0000000000000000 x12: 0000000000000000
[   17.443492] x11: 0000000000000000 x10: 0000000000000000
[   17.444030] x9 : 0000000000000000 x8 : 0000000000000000
[   17.444568] x7 : 0000000000000000 x6 : ffffffc00a5a3d38
[   17.445126] x5 : ffffffc00a5a3d38 x4 : 0000000000000000
[   17.445673] x3 : 0000000000000000 x2 : ffffff8104586040
[   17.446214] x1 : 0000000000000000 x0 : 0000000000000000
[   17.446755] Call trace:
[   17.449662]  drm_getunique+0x38/0x98
[   17.452686]  drm_ioctl_kernel+0xb0/0x100
[   17.455693]  drm_ioctl+0x304/0x344
[   17.458665]  vfs_ioctl+0x58/0x68
[   17.461652]  __arm64_sys_ioctl+0x68/0x98
[   17.464682]  el0_svc_common.constprop.4+0x134/0x1a8
[   17.467779]  do_el0_svc+0x80/0x9c
[   17.470702]  el0_svc+0x1c/0x28
[   17.473592]  el0_sync_handler+0x64/0x12c
[   17.476503]  el0_sync+0x158/0x180

Signed-off-by: Dongjin Kim <[email protected]>
Change-Id: I85f7c2d192057dbbeca516b1a7a6dd48c0d5bf01

Author: tobetter

drivers/gpu/drm/drm_ioctl.c

@@ -585,7 +585,9 @@ EXPORT_SYMBOL(drm_ioctl_permit);
 /* Ioctl table */
 static const struct drm_ioctl_desc drm_ioctls[] = {
 	DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, DRM_RENDER_ALLOW),
+#if !IS_ENABLED(CONFIG_DRM_PANFROST)
 	DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
+#endif
 	DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
 	DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),