From: Stephen Rothwell <sfr@canb.auug.org.au>
To: David Miller <davem@davemloft.net>, netdev@vger.kernel.org
Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org,
Willem de Bruijn <willemb@google.com>
Subject: linux-next: build warnings after merge of the net-next tree
Date: Thu, 14 May 2015 17:12:06 +1000 [thread overview]
Message-ID: <20150514171206.2fe660ec@canb.auug.org.au> (raw)
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Hi all,
After merging the net-next tree, today's linux-next build (sparc64 defconfig)
produced these warnings:
In file included from arch/sparc/include/asm/cmpxchg.h:4:0,
from arch/sparc/include/asm/atomic_64.h:11,
from arch/sparc/include/asm/atomic.h:4,
from include/linux/atomic.h:4,
from include/linux/spinlock.h:416,
from include/linux/mmzone.h:7,
from include/linux/gfp.h:5,
from include/linux/mm.h:9,
from net/packet/af_packet.c:56:
net/packet/af_packet.c: In function 'packet_rcv_has_room':
arch/sparc/include/asm/cmpxchg_64.h:43:22: warning: value computed is not used [-Wunused-value]
#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
^
net/packet/af_packet.c:1314:3: note: in expansion of macro 'xchg'
xchg(&po->pressure, !has_room);
^
net/packet/af_packet.c: In function 'packet_poll':
arch/sparc/include/asm/cmpxchg_64.h:43:22: warning: value computed is not used [-Wunused-value]
#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
^
net/packet/af_packet.c:3817:3: note: in expansion of macro 'xchg'
xchg(&po->pressure, 0);
^
Introduced by commit 2ccdbaa6d55b ("packet: rollover lock contention
avoidance").
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
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next reply other threads:[~2015-05-14 7:12 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-14 7:12 Stephen Rothwell [this message]
2015-05-14 14:47 ` linux-next: build warnings after merge of the net-next tree Willem de Bruijn
2015-06-20 13:12 Stephen Rothwell
2015-06-20 17:40 ` Florian Westphal
2015-06-20 18:31 ` Pablo Neira Ayuso
2016-11-22 1:22 Stephen Rothwell
2016-11-22 1:28 ` Florian Fainelli
2016-11-22 8:23 ` Thomas Petazzoni
2017-01-18 0:37 Stephen Rothwell
2017-03-20 6:07 Stephen Rothwell
2019-11-05 1:45 Stephen Rothwell
2020-12-14 9:10 Stephen Rothwell
2020-12-21 1:28 ` Stephen Rothwell
2021-01-05 6:19 ` Stephen Rothwell
2021-02-18 20:52 Stephen Rothwell
2021-02-19 8:44 ` Stephen Rothwell
2021-02-19 14:57 ` Kalle Valo
2021-03-18 6:22 Stephen Rothwell
2021-06-15 11:12 Stephen Rothwell
2021-06-15 11:23 Stephen Rothwell
2022-11-14 7:31 Stephen Rothwell
2022-11-14 8:00 ` Akira Yokosawa
2023-06-13 6:31 Stephen Rothwell
2023-06-20 16:15 ` Jakub Kicinski
2023-06-20 23:12 ` Saeed Mahameed
2023-06-26 6:29 Stephen Rothwell
2023-09-05 22:55 ` Stephen Rothwell
2023-09-05 23:44 ` Jakub Kicinski
2023-09-18 3:15 Stephen Rothwell
2023-09-18 7:43 ` Bagas Sanjaya
2023-12-04 4:47 Stephen Rothwell
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