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SubjectRE: [Linux-nvdimm] [PATCH 19/21] nd: infrastructure for btt devices
Date
> -----Original Message-----
> From: Linux-nvdimm [mailto:linux-nvdimm-bounces@lists.01.org] On Behalf Of
> Dan Williams
> Sent: Friday, April 17, 2015 8:37 PM
> To: linux-nvdimm@lists.01.org
> Subject: [Linux-nvdimm] [PATCH 19/21] nd: infrastructure for btt devices
>
...
> +/*
> + * btt_sb_checksum: compute checksum for btt info block
> + *
> + * Returns a fletcher64 checksum of everything in the given info block
> + * except the last field (since that's where the checksum lives).
> + */
> +u64 btt_sb_checksum(struct btt_sb *btt_sb)
> +{
> + u64 sum, sum_save;
> +
> + sum_save = btt_sb->checksum;
> + btt_sb->checksum = 0;
> + sum = nd_fletcher64(btt_sb, sizeof(*btt_sb));
> + btt_sb->checksum = sum_save;
> + return sum;
> +}
> +EXPORT_SYMBOL(btt_sb_checksum);
...

Of all the functions with prototypes in nd.h, this is the only
function that doesn't have a name starting with nd_.

Following such a convention helps ease setting up ftrace filters.

---
Robert Elliott, HP Server Storage



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