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From: Sven Peter <sven@kernel.org>
To: Janne Grunau <j@jannau.net>, Neal Gompa <neal@gompa.dev>
Cc: asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	 linux-kernel@vger.kernel.org, Sven Peter <sven@kernel.org>
Subject: [PATCH] soc: apple: Fix swapped paddr and size shift
Date: Sun, 08 Nov 2026 15:35:11 +0100	[thread overview]
Message-ID: <20261108-b4-sart-fix-v1-1-dab7dc1e9adb@kernel.org> (raw)

Right now we assign the paddr shift to the size shift and vice-versa.
Luckily, this doesn't matter because they are the same for all SART
versions but fixing this doesn't hurt.

Fixes: b170143ae111 ("soc: apple: Add SART driver")
Signed-off-by: Sven Peter <sven@kernel.org>
---
 drivers/soc/apple/sart.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/apple/sart.c b/drivers/soc/apple/sart.c
index 66b99955b395..5f1f9ec5d311 100644
--- a/drivers/soc/apple/sart.c
+++ b/drivers/soc/apple/sart.c
@@ -258,8 +258,8 @@ static int sart_set_entry(struct apple_sart *sart, int index, u8 flags,
 	if (paddr & ((1 << sart->ops->paddr_shift) - 1))
 		return -EINVAL;
 
-	paddr >>= sart->ops->size_shift;
-	size >>= sart->ops->paddr_shift;
+	paddr >>= sart->ops->paddr_shift;
+	size >>= sart->ops->size_shift;
 
 	if (size > sart->ops->size_max)
 		return -EINVAL;

---
base-commit: 6628e7d4c6b25c8d18f1345e3a20d21829aae7e4
change-id: 20261108-b4-sart-fix-5bd3c614af66

Best regards,
--  
Sven Peter <sven@kernel.org>



             reply	other threads:[~2026-11-08 14:35 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-08 14:35 Sven Peter [this message]
2026-11-08 14:58 ` Janne Grunau
2026-11-08 15:07 ` Sven Peter

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