Re: [PATCH v2] drm/i915/bios: add missing __packed to structs used for reading vbt

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On Mon, Sep 15, 2014 at 04:59:28PM +0300, Jani Nikula wrote:
> This does not seem to make a difference for the structs in question, but
> document the intent.
> 
> v2: also pack union child_device_config (Daniel)
> 
> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>

Queued for -next, thanks for the patch.
-Daniel
> ---
>  drivers/gpu/drm/i915/intel_bios.h | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h
> index 905999bee2ac..7603765c91fc 100644
> --- a/drivers/gpu/drm/i915/intel_bios.h
> +++ b/drivers/gpu/drm/i915/intel_bios.h
> @@ -46,7 +46,7 @@ struct bdb_header {
>  	u16 version;			/**< decimal */
>  	u16 header_size;		/**< in bytes */
>  	u16 bdb_size;			/**< in bytes */
> -};
> +} __packed;
>  
>  /* strictly speaking, this is a "skip" block, but it has interesting info */
>  struct vbios_data {
> @@ -252,7 +252,7 @@ union child_device_config {
>  	/* This one should also be safe to use anywhere, even without version
>  	 * checks. */
>  	struct common_child_dev_config common;
> -};
> +} __packed;
>  
>  struct bdb_general_definitions {
>  	/* DDC GPIO */
> @@ -888,12 +888,12 @@ struct mipi_pps_data {
>  	u16 bl_disable_delay;
>  	u16 panel_off_delay;
>  	u16 panel_power_cycle_delay;
> -};
> +} __packed;
>  
>  struct bdb_mipi_config {
>  	struct mipi_config config[MAX_MIPI_CONFIGURATIONS];
>  	struct mipi_pps_data pps[MAX_MIPI_CONFIGURATIONS];
> -};
> +} __packed;
>  
>  /* Block 53 contains MIPI sequences as needed by the panel
>   * for enabling it. This block can be variable in size and
> @@ -902,7 +902,7 @@ struct bdb_mipi_config {
>  struct bdb_mipi_sequence {
>  	u8 version;
>  	u8 data[0];
> -};
> +} __packed;
>  
>  /* MIPI Sequnece Block definitions */
>  enum mipi_seq {
> -- 
> 1.9.1
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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