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can: ucan: fix alignment constraints

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struct ucan_message_in contains member with 4-byte alignment
but is itself marked as unaligned, which triggers a warning:

drivers/net/can/usb/ucan.c:249:1: warning: alignment 1 of 'struct ucan_message_in' is less than 4 [-Wpacked-not-aligned]

Mark the outer structure to have the same alignment as the inner
one.

Link: https://lore.kernel.org/r/20210204162625.3099392-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Arnd Bergmann 2021-02-04 17:26:13 +01:00 committed by Marc Kleine-Budde
parent a3497afbe9
commit 27868a8fc1
1 changed files with 1 additions and 1 deletions
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2
drivers/net/can/usb/ucan.c
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@ -246,7 +246,7 @@ struct ucan_message_in {
*/
struct ucan_tx_complete_entry_t can_tx_complete_msg[0];
} __aligned(0x4) msg;
} __packed;
} __packed __aligned(0x4);
/* Macros to calculate message lengths */
#define UCAN_OUT_HDR_SIZE offsetof(struct ucan_message_out, msg)