linux-kernel - [PATCH] soc: qcom: smem: Fix endian-unaware access of num

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Message-ID: <20250726235646.254730-1-adrian@mainlining.org>
Date: Sun, 27 Jul 2025 01:56:46 +0200
From: Jens Reidel <adrian@...nlining.org>
To: Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux@...nlining.org,
	~postmarketos/upstreaming@...ts.sr.ht,
	Jens Reidel <adrian@...nlining.org>
Subject: [PATCH] soc: qcom: smem: Fix endian-unaware access of num_entries

Add a missing le32_to_cpu when accessing num_entries, which is always a
little endian integer.

Fixes booting on Xiaomi Mi 9T (xiaomi-davinci) in big endian.

Signed-off-by: Jens Reidel <adrian@...nlining.org>
---
 drivers/soc/qcom/smem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c
index cf425930539e..c4c45f15dca4 100644
--- a/drivers/soc/qcom/smem.c
+++ b/drivers/soc/qcom/smem.c
@@ -898,7 +898,7 @@ static u32 qcom_smem_get_item_count(struct qcom_smem *smem)
 	if (IS_ERR_OR_NULL(ptable))
 		return SMEM_ITEM_COUNT;
 
-	info = (struct smem_info *)&ptable->entry[ptable->num_entries];
+	info = (struct smem_info *)&ptable->entry[le32_to_cpu(ptable->num_entries)];
 	if (memcmp(info->magic, SMEM_INFO_MAGIC, sizeof(info->magic)))
 		return SMEM_ITEM_COUNT;
 
-- 
2.50.1