Re: [PATCH v3 2/2] lib: checksum: Use aligned accesses for ip_fast_csum and csum_ipv6_magic tests

From: Charlie Jenkins
Date: Wed Jan 24 2024 - 13:31:19 EST


On Wed, Jan 24, 2024 at 09:04:55AM +0000, David Laight wrote:
> From: Charlie Jenkins
> > Sent: 24 January 2024 00:39
> >
> > The test cases for ip_fast_csum and csum_ipv6_magic were using arbitrary
> > alignment of data to iterate through random inputs. ip_fast_csum should
> > have the data aligned along (14 + NET_IP_ALIGN) bytes and
> > csum_ipv6_magic should have data aligned along 32-bit boundaries.
> >
> ...
> > + 0x9359, 0x5630, 0xd659, 0x5b4d, 0x511e, 0x627c, 0x4e30, 0x73f1, 0x63c,
> > + 0xf2da, 0x7b, 0xa98b, 0x4fb7, 0x87a6, 0x2500, 0x34e4, 0xf0cd, 0xdc69,
> > + 0x7bde, 0x73f0, 0xd85d, 0x722d, 0x9776, 0x3c8, 0x7e07, 0xdca9, 0x9ecc,
> > + 0xc6c0, 0xbec1, 0x8de5, 0x6f7f, 0x1a09, 0xdbe6, 0x7c4b, 0x3787, 0xdb38,
> > + 0xfac, 0xbed9, 0x3039, 0x6501, 0xae1a, 0xed89, 0xd982, 0xc530, 0xccf6,
> > + 0xd888, 0xf369, 0x2c4e, 0x38c0, 0xcff5, 0xdc9d, 0x5998, 0xe0d1, 0x7e23,
>
> I'm seeing some odd alignment in that table.
> I think there are 'random' tabs following short constants.
> (Not helped by outuck deciding that tabs are 6 spaces!)
> Probably better to add leading spaces (or zeros after the 0x).

Sure, I will add zeros.

- Charlie

>
> David
>
> -
> Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
> Registration No: 1397386 (Wales)