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SubjectRe: [PATCH 013 of 20] knfsd: nfsd: factor out code from show_expflags
On Tue, 10 Jul 2007 12:27:37 +1000 NeilBrown <neilb@suse.de> wrote:

> +static void exp_flags(struct seq_file *m, int flag, int fsid,
> + uid_t anonu, uid_t anong, struct nfsd4_fs_locations *fsloc)
> +{
> + show_expflags(m, flag, NFSEXP_ALLFLAGS);
> if (flag & NFSEXP_FSID)
> - seq_printf(m, "%sfsid=%d", first++?",":"", fsid);
> + seq_printf(m, ",fsid=%d", fsid);
> if (anonu != (uid_t)-2 && anonu != (0x10000-2))
> - seq_printf(m, "%sanonuid=%d", first++?",":"", anonu);
> + seq_printf(m, ",sanonuid=%d", anonu);

It's a bit presumptuous to print a uid_t with "%d". Fortunately it
will work OK with all the present architectures.

But in general: be cautious when feeding opaque types to printk.
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