On 2/11/2013 9:46 PM, Hefty, Sean wrote:
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
>+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
>@@ -844,10 +844,10 @@ static u32 ipoib_addr_hash(struct ipoib_neigh_hash *htbl,
>u8 *daddr)
> * different subnets.
> */
> /* qpn octets[1:4) & port GUID octets[12:20) */
>- u32 *daddr_32 = (u32 *) daddr;
>+ u32 *d32 = (u32 *)daddr;
> u32 hv;
>
>- hv = jhash_3words(daddr_32[3], daddr_32[4], 0xFFFFFF & daddr_32[0], 0);
>+ hv = jhash_3words(d32[3], d32[4], cpu_to_be32(0xFFFFFF) & d32[0], 0);
Should d32 be declared as __be32 *?
Hi Sean,
The IPoIB destination address is indeed in big endian format and
normally the pointer to it should be of type __be32.
However in this case I just want to feed it into the hash function
without the flags part.
defining d32 as __be32* will make the code a bit ugly as I'll need to
cast 3 of "jhash_3words" functions arguments.
That is,
__be32 *d32;
....
hv = jhash_3words((__force u32) d32[3], (__force u32) d32[4], (__force
u32)(cpu_to_be32(0xFFFFFF) & d32[0]), 0);
Best regards,
S.P.
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