Re: [PATCH v5] can: add Renesas R-Car CAN driver
From: Sergei Shtylyov <hidden>
Date: 2014-01-20 12:12:53
Also in:
linux-can, linux-sh
From: Sergei Shtylyov <hidden>
Date: 2014-01-20 12:12:53
Also in:
linux-can, linux-sh
Hello. On 20-01-2014 15:43, Geert Uytterhoeven wrote:
quoted
Changes in version 3:
quoted
- added '__packed' to 'struct rcar_can_mbox_regs' and 'struct rcar_can_regs'; - removed unneeded type cast in the probe() method.
quoted
+/* Mailbox registers structure */ +struct rcar_can_mbox_regs { + u32 id; /* IDE and RTR bits, SID and EID */ + u8 stub; /* Not used */ + u8 dlc; /* Data Length Code - bits [0..3] */ + u8 data[8]; /* Data Bytes */ + u8 tsh; /* Time Stamp Higher Byte */ + u8 tsl; /* Time Stamp Lower Byte */ +} __packed;
Sorry, I missed the earlier discussion, but why the _packed? One u32 and 12 bytes makes a nice multiple of 4.
Mainly for consistency as this is a structure representing the hardware
registers.
Gr{oetje,eeting}s,Geert
WBR, Sergei