Messages in this thread | | | From | "Elliott, Robert (Server Storage)" <> | Subject | RE: [Linux-nvdimm] [PATCH 19/21] nd: infrastructure for btt devices | Date | Wed, 22 Apr 2015 19:12:18 +0000 |
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> -----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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