openwrt/target/linux/qualcommbe/patches-6.6/017-v6.,14-mtd-rawnand-qcom-Fix-build-issue-on-x86-architecture.patch
Christian Marangi 7333c694e3
qualcommbe: ipq95xx: Update patch with upstream version and refresh
Update patch with upstream version and automatically refresh with make
target/linux/refresh.

Also backport one additional fix patch for NAND patch and drop a patch
merged upstream.

Link: https://github.com/openwrt/openwrt/pull/17725
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-01-25 21:24:08 +01:00

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From b9371866799d67a80be0ea9e01bd41987db22f26 Mon Sep 17 00:00:00 2001
From: Md Sadre Alam <quic_mdalam@quicinc.com>
Date: Mon, 6 Jan 2025 18:45:58 +0530
Subject: [PATCH] mtd: rawnand: qcom: Fix build issue on x86 architecture
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Fix a buffer overflow issue in qcom_clear_bam_transaction by using
struct_group to group related fields and avoid FORTIFY_SOURCE warnings.
On x86 architecture, the following error occurs due to warnings being
treated as errors:
In function fortify_memset_chk,
inlined from qcom_clear_bam_transaction at
drivers/mtd/nand/qpic_common.c:88:2:
./include/linux/fortify-string.h:480:25: error: call to __write_overflow_field
declared with attribute warning: detected write beyond size of field
(1st parameter); maybe use struct_group()? [-Werror=attribute-warning]
480 | __write_overflow_field(p_size_field, size);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
LD [M] drivers/mtd/nand/nandcore.o
CC [M] drivers/w1/masters/mxc_w1.o
cc1: all warnings being treated as errors
This patch addresses the issue by grouping the related fields in
struct bam_transaction using struct_group and updating the memset call
accordingly.
Fixes: 8c52932da5e6 ("mtd: rawnand: qcom: cleanup qcom_nandc driver")
Signed-off-by: Md Sadre Alam <quic_mdalam@quicinc.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
drivers/mtd/nand/qpic_common.c | 2 +-
include/linux/mtd/nand-qpic-common.h | 19 +++++++++++--------
2 files changed, 12 insertions(+), 9 deletions(-)
diff --git a/drivers/mtd/nand/qpic_common.c b/drivers/mtd/nand/qpic_common.c
index 8abbb960a7ce..e0ed25b5afea 100644
--- a/drivers/mtd/nand/qpic_common.c
+++ b/drivers/mtd/nand/qpic_common.c
@@ -85,7 +85,7 @@ void qcom_clear_bam_transaction(struct qcom_nand_controller *nandc)
if (!nandc->props->supports_bam)
return;
- memset(&bam_txn->bam_ce_pos, 0, sizeof(u32) * 8);
+ memset(&bam_txn->bam_positions, 0, sizeof(bam_txn->bam_positions));
bam_txn->last_data_desc = NULL;
sg_init_table(bam_txn->cmd_sgl, nandc->max_cwperpage *
diff --git a/include/linux/mtd/nand-qpic-common.h b/include/linux/mtd/nand-qpic-common.h
index e79c79775eb8..4d9b736ff8b7 100644
--- a/include/linux/mtd/nand-qpic-common.h
+++ b/include/linux/mtd/nand-qpic-common.h
@@ -254,14 +254,17 @@ struct bam_transaction {
struct dma_async_tx_descriptor *last_data_desc;
struct dma_async_tx_descriptor *last_cmd_desc;
struct completion txn_done;
- u32 bam_ce_pos;
- u32 bam_ce_start;
- u32 cmd_sgl_pos;
- u32 cmd_sgl_start;
- u32 tx_sgl_pos;
- u32 tx_sgl_start;
- u32 rx_sgl_pos;
- u32 rx_sgl_start;
+ struct_group(bam_positions,
+ u32 bam_ce_pos;
+ u32 bam_ce_start;
+ u32 cmd_sgl_pos;
+ u32 cmd_sgl_start;
+ u32 tx_sgl_pos;
+ u32 tx_sgl_start;
+ u32 rx_sgl_pos;
+ u32 rx_sgl_start;
+
+ );
};
/*
--
2.47.1