diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index c4ef3a0a737ed0cb8553eb8a8c5e111987ac9f4c..66bf2aff4a3ed17b46e7d9cbb3dab34f6f66745b 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -1968,7 +1968,7 @@ static int load_nv17_hw_sequencer_ucode(struct drm_device *dev,
 	 * The microcode entries are found by the "HWSQ" signature.
 	 */
 
-	const uint8_t hwsq_signature[] = { 'H', 'W', 'S', 'Q' };
+	static const uint8_t hwsq_signature[] = { 'H', 'W', 'S', 'Q' };
 	const int sz = sizeof(hwsq_signature);
 	int hwsq_offset;
 
@@ -1984,7 +1984,7 @@ uint8_t *nouveau_bios_embedded_edid(struct drm_device *dev)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nvbios *bios = &drm->vbios;
-	const uint8_t edid_sig[] = {
+	static const uint8_t edid_sig[] = {
 			0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 };
 	uint16_t offset = 0;
 	uint16_t newoffset;
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/memory.c b/drivers/gpu/drm/nouveau/nvkm/core/memory.c
index 29f4b4070b5579e6d48b9ab2864a60f25fdec1c6..e85a08ecd9da578d51fd778f171ea07e55bf9bb1 100644
--- a/drivers/gpu/drm/nouveau/nvkm/core/memory.c
+++ b/drivers/gpu/drm/nouveau/nvkm/core/memory.c
@@ -64,6 +64,7 @@ nvkm_memory_tags_get(struct nvkm_memory *memory, struct nvkm_device *device,
 		}
 
 		refcount_inc(&tags->refcount);
+		mutex_unlock(&fb->subdev.mutex);
 		*ptags = tags;
 		return 0;
 	}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/timing.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/timing.c
index 7e83c3985020e1edef5eed296bc66abbb3256922..20ff5173cf8fdd94bf63839be220f361c46a73be 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/timing.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/timing.c
@@ -115,16 +115,21 @@ nvbios_timingEp(struct nvkm_bios *bios, int idx,
 		switch (min_t(u8, *hdr, 25)) {
 		case 25:
 			p->timing_10_24  = nvbios_rd08(bios, data + 0x18);
+			/* fall through */
 		case 24:
 		case 23:
 		case 22:
 			p->timing_10_21  = nvbios_rd08(bios, data + 0x15);
+			/* fall through */
 		case 21:
 			p->timing_10_20  = nvbios_rd08(bios, data + 0x14);
+			/* fall through */
 		case 20:
 			p->timing_10_CWL = nvbios_rd08(bios, data + 0x13);
+			/* fall through */
 		case 19:
 			p->timing_10_18  = nvbios_rd08(bios, data + 0x12);
+			/* fall through */
 		case 18:
 		case 17:
 			p->timing_10_16  = nvbios_rd08(bios, data + 0x10);
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv04.c
index 158977f8a6e6f35f1de5c0579def5d36883ed141..c3dae05348eb595ac1928c6888d7cd283a783436 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv04.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv04.c
@@ -119,11 +119,11 @@ powerctrl_1_shift(int chip_version, int reg)
 
 	switch (reg) {
 	case 0x680520:
-		shift += 4;
+		shift += 4; /* fall through */
 	case 0x680508:
-		shift += 4;
+		shift += 4; /* fall through */
 	case 0x680504:
-		shift += 4;
+		shift += 4; /* fall through */
 	case 0x680500:
 		shift += 4;
 	}
@@ -245,11 +245,11 @@ setPLL_double_highregs(struct nvkm_devinit *init, u32 reg1,
 
 		switch (reg1) {
 		case 0x680504:
-			shift_c040 += 2;
+			shift_c040 += 2; /* fall through */
 		case 0x680500:
-			shift_c040 += 2;
+			shift_c040 += 2; /* fall through */
 		case 0x680520:
-			shift_c040 += 2;
+			shift_c040 += 2; /* fall through */
 		case 0x680508:
 			shift_c040 += 2;
 		}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
index 6446bc61b084a795b7891c13a234551a8b99a51a..e35d3e17cd7ca39555bff44948678961533b06af 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
@@ -1349,12 +1349,12 @@ nvkm_vmm_get_locked(struct nvkm_vmm *vmm, bool getref, bool mapref, bool sparse,
 
 		addr = this->addr;
 		if (vmm->func->page_block && prev && prev->page != p)
-			addr = roundup(addr, vmm->func->page_block);
+			addr = ALIGN(addr, vmm->func->page_block);
 		addr = ALIGN(addr, 1ULL << align);
 
 		tail = this->addr + this->size;
 		if (vmm->func->page_block && next && next->page != p)
-			tail = rounddown(tail, vmm->func->page_block);
+			tail = ALIGN_DOWN(addr, vmm->func->page_block);
 
 		if (addr <= tail && tail - addr >= size) {
 			rb_erase(&this->tree, &vmm->free);