| Date | Wed, 09 Apr 2008 14:28:05 -0500 | From | Jeremy Fitzhardinge <> | Subject | Re: [PATCH RFC 1/5] vringfd syscall |
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Rusty Russell wrote: > +asmlinkage long sys_vringfd(void __user *addr, > + unsigned num_descs, > + u16 __user *last_used) > +{ > + int fd, err; > + struct file *filp; > + struct vring_info *vr; > + > + /* Must be a power of two, and representable by u16 */ > + if (!num_descs || (num_descs & (num_descs-1)) || num_descs > 65536) { >
65536 doesn't fit in u16.
J
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