From 2da38e0c9465b89518b29328daeb7da0ca1690b7 Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Thu, 19 Jun 2014 14:41:00 +0530 Subject: ALSA: compress: fix the struct alignment to 4 bytes In 64bit systems the compiler can default align to 8bytes causing mis-match with 32bit usermode. Avoid this is future by ensuring all the structures shared with usermode are packed and aligned to 4 bytes irrespective of arch used [coding style fixes by tiwai] Signed-off-by: Vinod Koul Signed-off-by: Takashi Iwai --- include/uapi/sound/compress_offload.h | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'include/uapi/sound/compress_offload.h') diff --git a/include/uapi/sound/compress_offload.h b/include/uapi/sound/compress_offload.h index 21eed488783f..1964026b5e09 100644 --- a/include/uapi/sound/compress_offload.h +++ b/include/uapi/sound/compress_offload.h @@ -39,7 +39,7 @@ struct snd_compressed_buffer { __u32 fragment_size; __u32 fragments; -}; +} __attribute__((packed, aligned(4))); /** * struct snd_compr_params: compressed stream params @@ -51,7 +51,7 @@ struct snd_compr_params { struct snd_compressed_buffer buffer; struct snd_codec codec; __u8 no_wake_mode; -}; +} __attribute__((packed, aligned(4))); /** * struct snd_compr_tstamp: timestamp descriptor @@ -70,7 +70,7 @@ struct snd_compr_tstamp { __u32 pcm_frames; __u32 pcm_io_frames; __u32 sampling_rate; -}; +} __attribute__((packed, aligned(4))); /** * struct snd_compr_avail: avail descriptor @@ -80,7 +80,7 @@ struct snd_compr_tstamp { struct snd_compr_avail { __u64 avail; struct snd_compr_tstamp tstamp; -} __attribute__((packed)); +} __attribute__((packed, aligned(4))); enum snd_compr_direction { SND_COMPRESS_PLAYBACK = 0, @@ -107,7 +107,7 @@ struct snd_compr_caps { __u32 max_fragments; __u32 codecs[MAX_NUM_CODECS]; __u32 reserved[11]; -}; +} __attribute__((packed, aligned(4))); /** * struct snd_compr_codec_caps: query capability of codec @@ -119,7 +119,7 @@ struct snd_compr_codec_caps { __u32 codec; __u32 num_descriptors; struct snd_codec_desc descriptor[MAX_NUM_CODEC_DESCRIPTORS]; -}; +} __attribute__((packed, aligned(4))); /** * @SNDRV_COMPRESS_ENCODER_PADDING: no of samples appended by the encoder at the @@ -140,7 +140,7 @@ enum { struct snd_compr_metadata { __u32 key; __u32 value[8]; -}; +} __attribute__((packed, aligned(4))); /** * compress path ioctl definitions -- cgit