linux-next: build warnings after merge of the net-next tree

From: Stephen Rothwell
Date: Sat Jun 20 2015 - 09:13:22 EST


Hi all,

After merging the net-next tree, today's linux-next build (i386 defconfig)
produced these warnings:

In file included from include/net/netfilter/nf_conntrack_tuple.h:13:0,
from include/linux/netfilter/nf_conntrack_dccp.h:28,
from include/net/netfilter/nf_conntrack.h:22,
from net/netfilter/nf_conntrack_core.c:37:
include/linux/netfilter/x_tables.h: In function 'xt_percpu_counter_alloc':
include/linux/netfilter/x_tables.h:373:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
return (__force u64) res;
^
include/linux/netfilter/x_tables.h: In function 'xt_percpu_counter_free':
include/linux/netfilter/x_tables.h:381:15: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
free_percpu((void __percpu *) pcnt);
^
In file included from include/asm-generic/percpu.h:6:0,
from arch/x86/include/asm/percpu.h:551,
from arch/x86/include/asm/preempt.h:5,
from include/linux/preempt.h:64,
from include/linux/spinlock.h:50,
from include/linux/mm_types.h:8,
from include/linux/kmemcheck.h:4,
from include/linux/skbuff.h:18,
from include/linux/netfilter.h:5,
from net/netfilter/nf_conntrack_core.c:16:
include/linux/netfilter/x_tables.h: In function 'xt_get_this_cpu_counter':
include/linux/netfilter/x_tables.h:388:23: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
return this_cpu_ptr((void __percpu *) cnt->pcnt);
^
include/linux/percpu-defs.h:206:47: note: in definition of macro '__verify_pcpu_ptr'
const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \
^
include/linux/percpu-defs.h:239:27: note: in expansion of macro 'raw_cpu_ptr'
#define this_cpu_ptr(ptr) raw_cpu_ptr(ptr)
^
include/linux/netfilter/x_tables.h:388:10: note: in expansion of macro 'this_cpu_ptr'
return this_cpu_ptr((void __percpu *) cnt->pcnt);
^

and many more.

Introduced by commit:

71ae0dff02d7 ("netfilter: xtables: use percpu rule counters")

--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx

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