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From: Stephen Rothwell <>
To: David Miller <>,
	Florian Westphal <>,
	Pablo Neira Ayuso <>,
	Eric Dumazet <>
Subject: linux-next: build warnings after merge of the net-next tree
Date: Sat, 20 Jun 2015 23:12:55 +1000
Message-ID: <> (raw)

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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")

Stephen Rothwell          

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             reply index

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-20 13:12 Stephen Rothwell [this message]
2015-06-20 17:40 ` Florian Westphal
2015-06-20 18:31   ` Pablo Neira Ayuso
  -- strict thread matches above, loose matches on Subject: below --
2019-11-05  1:45 Stephen Rothwell
2017-03-20  6:07 Stephen Rothwell
2017-01-18  0:37 Stephen Rothwell
2016-11-22  1:22 Stephen Rothwell
2016-11-22  1:28 ` Florian Fainelli
2016-11-22  8:23   ` Thomas Petazzoni
2015-05-14  7:12 Stephen Rothwell
2015-05-14 14:47 ` Willem de Bruijn

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