linux-kernel - [PATCH] soc: ti: pruss: don't use %pK through printk

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Message-Id: <20250718-restricted-pointers-soc-v1-1-c0d0d0bc2e39@linutronix.de>
Date: Fri, 18 Jul 2025 15:40:32 +0200
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Nishanth Menon <nm@...com>, Santosh Shilimkar <ssantosh@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Subject: [PATCH] soc: ti: pruss: 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 ad67b74d2469 ("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.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
---
 drivers/soc/ti/pruss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/ti/pruss.c b/drivers/soc/ti/pruss.c
index d7634bf5413a3421da296103fc1591030cd00cbc..038576805bfa0f8dece569cf6faecedfb43a392f 100644
--- a/drivers/soc/ti/pruss.c
+++ b/drivers/soc/ti/pruss.c
@@ -449,7 +449,7 @@ static int pruss_of_setup_memories(struct device *dev, struct pruss *pruss)
 		pruss->mem_regions[i].pa = res.start;
 		pruss->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], &pruss->mem_regions[i].pa,
 			pruss->mem_regions[i].size, pruss->mem_regions[i].va);
 	}

---
base-commit: d086c886ceb9f59dea6c3a9dae7eb89e780a20c9
change-id: 20250718-restricted-pointers-soc-499748d55cbc

Best regards,
-- 
Thomas Weißschuh <thomas.weissschuh@...utronix.de>