remoteproc: Don't use %pK through printk

In the past %pK was preferable to %p as it would not leak raw pointer
values into the kernel log.
Since commit ad67b74 ("printk: hash addresses printed with %p")
the regular %p has been improved to avoid this issue.
Furthermore, restricted pointers ("%pK") were never meant to be used
through printk(). They can still unintentionally leak raw pointers or
acquire sleeping locks in atomic contexts.

Switch to the regular pointer formatting which is safer and
easier to reason about.
There are still a few users of %pK left, but these use it through seq_file,
for which its usage is safe.

Signed-off-by: Thomas Weißschuh <[email protected]>
Link: https://lore.kernel.org/r/20250611-restricted-pointers-remoteproc-v1-1-f059097ba663@linutronix.de
Signed-off-by: Bjorn Andersson <[email protected]>

Author: t-8ch

drivers/remoteproc/omap_remoteproc.c

@@ -1211,7 +1211,7 @@ static int omap_rproc_of_get_internal_memories(struct platform_device *pdev,
 		oproc->mem[i].dev_addr = data->mems[i].dev_addr;
 		oproc->mem[i].size = resource_size(res);
 
-		dev_dbg(dev, "memory %8s: bus addr %pa size 0x%x va %pK da 0x%x\n",
+		dev_dbg(dev, "memory %8s: bus addr %pa size 0x%x va %p da 0x%x\n",
 			data->mems[i].name, &oproc->mem[i].bus_addr,
 			oproc->mem[i].size, oproc->mem[i].cpu_addr,
 			oproc->mem[i].dev_addr);

drivers/remoteproc/pru_rproc.c

@@ -1055,7 +1055,7 @@ static int pru_rproc_probe(struct platform_device *pdev)
 		pru->mem_regions[i].pa = res->start;
 		pru->mem_regions[i].size = resource_size(res);
 
-		dev_dbg(dev, "memory %8s: pa %pa size 0x%zx va %pK\n",
+		dev_dbg(dev, "memory %8s: pa %pa size 0x%zx va %p\n",
 			mem_names[i], &pru->mem_regions[i].pa,
 			pru->mem_regions[i].size, pru->mem_regions[i].va);
 	}

drivers/remoteproc/remoteproc_core.c

@@ -699,7 +699,7 @@ static int rproc_alloc_carveout(struct rproc *rproc,
 		return -ENOMEM;
 	}
 
-	dev_dbg(dev, "carveout va %pK, dma %pad, len 0x%zx\n",
+	dev_dbg(dev, "carveout va %p, dma %pad, len 0x%zx\n",
 		va, &dma, mem->len);
 
 	if (mem->da != FW_RSC_ADDR_ANY && !rproc->domain) {

drivers/remoteproc/remoteproc_virtio.c

@@ -136,7 +136,7 @@ static struct virtqueue *rp_find_vq(struct virtio_device *vdev,
 	size = vring_size(num, rvring->align);
 	memset(addr, 0, size);
 
-	dev_dbg(dev, "vring%d: va %pK qsz %d notifyid %d\n",
+	dev_dbg(dev, "vring%d: va %p qsz %d notifyid %d\n",
 		id, addr, num, rvring->notifyid);
 
 	/*

drivers/remoteproc/st_slim_rproc.c

@@ -190,7 +190,7 @@ static void *slim_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *
 		}
 	}
 
-	dev_dbg(&rproc->dev, "da = 0x%llx len = 0x%zx va = 0x%pK\n",
+	dev_dbg(&rproc->dev, "da = 0x%llx len = 0x%zx va = 0x%p\n",
 		da, len, va);
 
 	return va;

drivers/remoteproc/ti_k3_common.c

@@ -450,7 +450,7 @@ int k3_rproc_of_get_memories(struct platform_device *pdev,
 		kproc->mem[i].dev_addr = data->mems[i].dev_addr;
 		kproc->mem[i].size = resource_size(res);
 
-		dev_dbg(dev, "memory %8s: bus addr %pa size 0x%zx va %pK da 0x%x\n",
+		dev_dbg(dev, "memory %8s: bus addr %pa size 0x%zx va %p da 0x%x\n",
 			data->mems[i].name, &kproc->mem[i].bus_addr,
 			kproc->mem[i].size, kproc->mem[i].cpu_addr,
 			kproc->mem[i].dev_addr);
@@ -528,7 +528,7 @@ int k3_reserved_mem_init(struct k3_rproc *kproc)
 			return -ENOMEM;
 		}
 
-		dev_dbg(dev, "reserved memory%d: bus addr %pa size 0x%zx va %pK da 0x%x\n",
+		dev_dbg(dev, "reserved memory%d: bus addr %pa size 0x%zx va %p da 0x%x\n",
 			i + 1, &kproc->rmem[i].bus_addr,
 			kproc->rmem[i].size, kproc->rmem[i].cpu_addr,
 			kproc->rmem[i].dev_addr);

drivers/remoteproc/ti_k3_r5_remoteproc.c

@@ -1007,7 +1007,7 @@ static int k3_r5_core_of_get_sram_memories(struct platform_device *pdev,
 			return -ENOMEM;
 		}
 
-		dev_dbg(dev, "memory sram%d: bus addr %pa size 0x%zx va %pK da 0x%x\n",
+		dev_dbg(dev, "memory sram%d: bus addr %pa size 0x%zx va %p da 0x%x\n",
 			i, &core->sram[i].bus_addr,
 			core->sram[i].size, core->sram[i].cpu_addr,
 			core->sram[i].dev_addr);

drivers/rpmsg/virtio_rpmsg_bus.c

@@ -901,7 +901,7 @@ static int rpmsg_probe(struct virtio_device *vdev)
 		goto vqs_del;
 	}
 
-	dev_dbg(&vdev->dev, "buffers: va %pK, dma %pad\n",
+	dev_dbg(&vdev->dev, "buffers: va %p, dma %pad\n",
 		bufs_va, &vrp->bufs_dma);
 
 	/* half of the buffers is dedicated for RX */