On Tue Sep 15 22:24:48 2026 +0200, Arnd Bergmann wrote:
> The newly added structure has extra padding on the on
> some architectures, which triggers a pedantic uapi check:
>
> ./usr/include/linux/media/arm/mali-c55-config.h:807:1: error: padding struct
> size to alignment boundary with 2 bytes [-Werror=padded]
>
> Add explicit padding here to avoid risking information leaks
> and incompatibilities between architectures.
>
> Fixes: bb401df68c06 ("media: mali-c55: Add support for CCM")
> Cc: [email protected]
> Signed-off-by: Arnd Bergmann <[email protected]>
> Reviewed-by: Vincenzo Frascino <[email protected]>
> Reviewed-by: Linus Walleij <[email protected]>
> Reviewed-by: Jacopo Mondi <[email protected]>
> Signed-off-by: Jacopo Mondi <[email protected]>
> Signed-off-by: Hans Verkuil <[email protected]>
Patch committed.
Thanks,
Hans Verkuil
include/uapi/linux/media/arm/mali-c55-config.h | 2 ++
1 file changed, 2 insertions(+)
---
diff --git a/include/uapi/linux/media/arm/mali-c55-config.h
b/include/uapi/linux/media/arm/mali-c55-config.h
index ef0fe17df96e..3ba416d81cd7 100644
--- a/include/uapi/linux/media/arm/mali-c55-config.h
+++ b/include/uapi/linux/media/arm/mali-c55-config.h
@@ -794,12 +794,14 @@ struct mali_c55_params_mesh_shading_selection {
* Q4.8 format
* @gains: Gains for red, green and blue channels in unsigned Q4.8 format
* @offs: Offsets for red, green and blue channels
+ * @__pad: Reserved bytes
*/
struct mali_c55_params_ccm {
struct v4l2_isp_params_block_header header;
__u16 coeffs[3][3];
__u16 gains[3];
__u16 offs[3];
+ __u16 __pad;
};
/**
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