Re: [PATCH -mm 4/5] Blackfin: patch add blackfin support in smc91xethernet controller driver

From: Andrew Morton
Date: Thu Mar 01 2007 - 03:55:28 EST


On Thu, 01 Mar 2007 12:15:29 +0800 "Wu, Bryan" <bryan.wu@xxxxxxxxxx> wrote:

> +/* check if the mac in reg is valid */
> +#define SMC_GET_MAC_ADDR(addr) \
> + do { \
> + unsigned int __v; \
> + __v = SMC_inw( ioaddr, ADDR0_REG ); \
> + addr[0] = __v; addr[1] = __v >> 8; \
> + __v = SMC_inw( ioaddr, ADDR1_REG ); \
> + addr[2] = __v; addr[3] = __v >> 8; \
> + __v = SMC_inw( ioaddr, ADDR2_REG ); \
> + addr[4] = __v; addr[5] = __v >> 8; \
> + if (*(u32 *)(&addr[0]) == 0xFFFFFFFF) { \
> + random_ether_addr(addr); \
> + } \
> + } while (0)

Please follow kernel coding style:

__v = SMC_inw(ioaddr, ADDR2_REG);


Can this not be implemented as a C function?
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