Hi Yann, On Fri, May 31, 2019 at 12:06:52PM +0200, Yann Droneaud wrote: > Hi, > > Le vendredi 31 mai 2019 à 15:43 +0900, Minchan Kim a écrit : > > > > diff --git a/include/uapi/asm-generic/mman-common.h > > b/include/uapi/asm-generic/mman-common.h > > index 92e347a89ddc..220c2b5eb961 100644 > > --- a/include/uapi/asm-generic/mman-common.h > > +++ b/include/uapi/asm-generic/mman-common.h > > @@ -75,4 +75,15 @@ > > #define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\ > > PKEY_DISABLE_WRITE) > > > > +struct pr_madvise_param { > > + int size; /* the size of this structure */ > > + int cookie; /* reserved to support atomicity */ > > + int nr_elem; /* count of below arrary fields */ > > Those should be unsigned. > > There's an implicit hole here on ABI with 64bits aligned pointers > > > + int __user *hints; /* hints for each range */ > > + /* to store result of each operation */ > > + const struct iovec __user *results; > > + /* input address ranges */ > > + const struct iovec __user *ranges; > > Using pointer type in uAPI structure require a 'compat' version of the > syscall need to be provided. > > If using iovec too. I will fix them when I submit next revision. Thanks for the review.