net/netlink/af_netlink.c:194:39: sparse: incorrect type in return expre

Hi Patrick,

There are new sparse warnings show up in

tree:   git://150.214.188.80/nf-next mmap-netlink
head:   c7e7243d0b69e2323dde057c28f1102d00e5a3c6
commit: a20a76bdf79a4b6c25df3ad1a48fd601a0b59400 [61/68] netlink: mmaped netlink: ring setup

All sparse warnings:

+ net/netlink/af_netlink.c:194:39: sparse: incorrect type in return expression (different modifiers)
net/netlink/af_netlink.c:194:39: expected struct page [pure] *
net/netlink/af_netlink.c:194:39: got struct page *
net/netlink/af_netlink.c:196:24: sparse: incorrect type in return expression (different modifiers)
net/netlink/af_netlink.c:196:24: expected struct page [pure] *
net/netlink/af_netlink.c:196:24: got struct page *
+ net/netlink/af_netlink.c:397:38: sparse: incorrect type in assignment (different modifiers)
net/netlink/af_netlink.c:397:38: expected struct page *page
net/netlink/af_netlink.c:397:38: got struct page [pure] *
net/netlink/af_netlink.c:819:56: sparse: incorrect type in argument 1 (different address spaces)
net/netlink/af_netlink.c:819:56: expected void const *<noident>
net/netlink/af_netlink.c:819:56: got struct listeners [noderef] <asn:4>*listeners
net/netlink/af_netlink.c:632:38: sparse: dereference of noderef expression

vim +194 net/netlink/af_netlink.c
191 static __pure struct page *pgvec_to_page(const void *addr)
192 {
193 if (is_vmalloc_addr(addr))

195 else
196 return virt_to_page(addr);
197 }

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0-DAY kernel build testing backend Open Source Technology Centre
Fengguang Wu <[email protected]> Intel Corporation