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charset="utf-8" From: Ming Qian Fix a kernel panic when probing the driver as a module: Unable to handle kernel paging request at virtual address ffffd9c18eb05000 of_find_matching_node_and_match+0x5c/0x1a0 hantro_probe+0x2f4/0x7d0 [hantro_vpu] The imx8mq_vpu_shared_resources array is referenced by variant structures through their shared_devices field. When built as a module, __initconst causes this data to be freed after module init, but it's later accessed during probe, causing a page fault. The imx8mq_vpu_shared_resources is referenced from non-init code, so keeping __initconst or __initconst_or_module here is wrong. Drop the __initconst annotation and let it live in the normal .rodata section. A bug of __initconst called from regular non-init probe code leading to bugs during probe deferrals or during unbind-bind cycles. Reported-by: Krzysztof Kozlowski Closes: https://lore.kernel.org/all/68ef934f-baa0-4bf6-93d8-834bbc441e66@ke= rnel.org/ Reported-by: Franz Schnyder Closes: https://lore.kernel.org/all/n3qmcb62tepxltoskpf7ws6yiirc2so62ia23b4= 2rj3wlmpl67@rvkbuirx7kkp/ Fixes: e0203ddf9af7 ("media: verisilicon: Avoid G2 bus error while decoding= H.264 and HEVC") Suggested-by: Krzysztof Kozlowski Suggested-by: Marco Felsch Reviewed-by: Marco Felsch Signed-off-by: Ming Qian Reviewed-by: Frank Li Reviewed-by: Krzysztof Kozlowski --- v4 - Increase the diff context length to pass the checkpatch.pl. - Discard irrelevant changes to sentinel v3 - Add missing Reported-by and Suggested-by tag - Add commas to pass checkpatch v2 - Remove __initconst - Add missing Reported-by tag - Add missing Suggested-by tag - Remove comments of sentinel to pass checkpatch.pl drivers/media/platform/verisilicon/imx8m_vpu_hw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/platform/verisilicon/imx8m_vpu_hw.c b/drivers/me= dia/platform/verisilicon/imx8m_vpu_hw.c index 6f8e43b7f157..fa4224de4b99 100644 --- a/drivers/media/platform/verisilicon/imx8m_vpu_hw.c +++ b/drivers/media/platform/verisilicon/imx8m_vpu_hw.c @@ -342,9 +342,9 @@ const struct hantro_variant imx8mq_vpu_variant =3D { .reg_names =3D imx8mq_reg_names, .num_regs =3D ARRAY_SIZE(imx8mq_reg_names) }; =20 -static const struct of_device_id imx8mq_vpu_shared_resources[] __initconst= =3D { +static const struct of_device_id imx8mq_vpu_shared_resources[] =3D { { .compatible =3D "nxp,imx8mq-vpu-g1", }, { .compatible =3D "nxp,imx8mq-vpu-g2", }, { /* sentinel */ } }; base-commit: f505e978d1a0442adbbde48aed38c084ddea6d6e prerequisite-patch-id: 0000000000000000000000000000000000000000 --=20 2.52.0