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Date: Sun, 2 Jul 2017 11:29:25 +0800
From: kbuild test robot <fengguang.wu@...el.com>
To: "Reshetova, Elena" <elena.reshetova@...el.com>
Cc: kbuild-all@...org, netdev@...r.kernel.org,
Hans Liljestrand <ishkamiel@...il.com>,
Kees Cook <keescook@...omium.org>,
David Windsor <dave@...lcore.net>
Subject: [net-next:master 1847/1910] drivers/s390/net/ctcm_fsms.c:220:14:
error: passing argument 2 of 'atomic_add' from incompatible pointer type
tree: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git master
head: bcdb239b456265b927a809c4078f0a1f433a6e18
commit: 633547973ffc32fd2c815639d4675e1531f0896f [1847/1910] net: convert sk_buff.users from atomic_t to refcount_t
config: s390-default_defconfig (attached as .config)
compiler: s390x-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 633547973ffc32fd2c815639d4675e1531f0896f
# save the attached .config to linux build tree
make.cross ARCH=s390
All errors (new ones prefixed by >>):
In file included from include/linux/atomic.h:4:0,
from include/linux/debug_locks.h:5,
from include/linux/lockdep.h:25,
from include/linux/spinlock_types.h:18,
from include/linux/spinlock.h:81,
from include/linux/seqlock.h:35,
from include/linux/time.h:5,
from include/linux/stat.h:18,
from include/linux/module.h:10,
from drivers/s390/net/ctcm_fsms.c:17:
drivers/s390/net/ctcm_fsms.c: In function 'ctcm_purge_skb_queue':
>> drivers/s390/net/ctcm_fsms.c:220:14: error: passing argument 2 of 'atomic_add' from incompatible pointer type [-Werror=incompatible-pointer-types]
atomic_dec(&skb->users);
^
arch/s390/include/asm/atomic.h:61:52: note: in definition of macro 'atomic_sub'
#define atomic_sub(_i, _v) atomic_add(-(int)(_i), _v)
^~
drivers/s390/net/ctcm_fsms.c:220:3: note: in expansion of macro 'atomic_dec'
atomic_dec(&skb->users);
^~~~~~~~~~
arch/s390/include/asm/atomic.h:46:20: note: expected 'atomic_t * {aka struct <anonymous> *}' but argument is of type 'refcount_t * {aka struct refcount_struct *}'
static inline void atomic_add(int i, atomic_t *v)
^~~~~~~~~~
drivers/s390/net/ctcm_fsms.c: In function 'chx_txdone':
drivers/s390/net/ctcm_fsms.c:274:14: error: passing argument 2 of 'atomic_add' from incompatible pointer type [-Werror=incompatible-pointer-types]
atomic_dec(&skb->users);
^
arch/s390/include/asm/atomic.h:61:52: note: in definition of macro 'atomic_sub'
#define atomic_sub(_i, _v) atomic_add(-(int)(_i), _v)
^~
drivers/s390/net/ctcm_fsms.c:274:3: note: in expansion of macro 'atomic_dec'
atomic_dec(&skb->users);
^~~~~~~~~~
arch/s390/include/asm/atomic.h:46:20: note: expected 'atomic_t * {aka struct <anonymous> *}' but argument is of type 'refcount_t * {aka struct refcount_struct *}'
static inline void atomic_add(int i, atomic_t *v)
^~~~~~~~~~
drivers/s390/net/ctcm_fsms.c:300:15: error: passing argument 2 of 'atomic_add' from incompatible pointer type [-Werror=incompatible-pointer-types]
atomic_dec(&skb->users);
^
arch/s390/include/asm/atomic.h:61:52: note: in definition of macro 'atomic_sub'
#define atomic_sub(_i, _v) atomic_add(-(int)(_i), _v)
^~
drivers/s390/net/ctcm_fsms.c:300:4: note: in expansion of macro 'atomic_dec'
atomic_dec(&skb->users);
^~~~~~~~~~
arch/s390/include/asm/atomic.h:46:20: note: expected 'atomic_t * {aka struct <anonymous> *}' but argument is of type 'refcount_t * {aka struct refcount_struct *}'
static inline void atomic_add(int i, atomic_t *v)
^~~~~~~~~~
drivers/s390/net/ctcm_fsms.c: In function 'ctcmpc_chx_txdone':
drivers/s390/net/ctcm_fsms.c:1251:14: error: passing argument 2 of 'atomic_add' from incompatible pointer type [-Werror=incompatible-pointer-types]
atomic_dec(&skb->users);
^
arch/s390/include/asm/atomic.h:61:52: note: in definition of macro 'atomic_sub'
#define atomic_sub(_i, _v) atomic_add(-(int)(_i), _v)
^~
drivers/s390/net/ctcm_fsms.c:1251:3: note: in expansion of macro 'atomic_dec'
atomic_dec(&skb->users);
^~~~~~~~~~
arch/s390/include/asm/atomic.h:46:20: note: expected 'atomic_t * {aka struct <anonymous> *}' but argument is of type 'refcount_t * {aka struct refcount_struct *}'
static inline void atomic_add(int i, atomic_t *v)
^~~~~~~~~~
drivers/s390/net/ctcm_fsms.c:1301:14: error: passing argument 2 of 'atomic_add' from incompatible pointer type [-Werror=incompatible-pointer-types]
atomic_dec(&skb->users);
^
arch/s390/include/asm/atomic.h:61:52: note: in definition of macro 'atomic_sub'
#define atomic_sub(_i, _v) atomic_add(-(int)(_i), _v)
^~
drivers/s390/net/ctcm_fsms.c:1301:3: note: in expansion of macro 'atomic_dec'
atomic_dec(&skb->users);
^~~~~~~~~~
arch/s390/include/asm/atomic.h:46:20: note: expected 'atomic_t * {aka struct <anonymous> *}' but argument is of type 'refcount_t * {aka struct refcount_struct *}'
static inline void atomic_add(int i, atomic_t *v)
^~~~~~~~~~
drivers/s390/net/ctcm_fsms.c: In function 'ctcmpc_chx_send_sweep':
drivers/s390/net/ctcm_fsms.c:1798:14: error: passing argument 2 of 'atomic_add' from incompatible pointer type [-Werror=incompatible-pointer-types]
atomic_inc(&skb->users);
^
arch/s390/include/asm/atomic.h:58:40: note: in definition of macro 'atomic_inc'
#define atomic_inc(_v) atomic_add(1, _v)
^~
arch/s390/include/asm/atomic.h:46:20: note: expected 'atomic_t * {aka struct <anonymous> *}' but argument is of type 'refcount_t * {aka struct refcount_struct *}'
static inline void atomic_add(int i, atomic_t *v)
^~~~~~~~~~
cc1: some warnings being treated as errors
vim +/atomic_add +220 drivers/s390/net/ctcm_fsms.c
293d984f Peter Tiedemann 2008-02-08 214 {
293d984f Peter Tiedemann 2008-02-08 215 struct sk_buff *skb;
293d984f Peter Tiedemann 2008-02-08 216
aa3f2cb6 Peter Tiedemann 2008-07-18 217 CTCM_DBF_TEXT(TRACE, CTC_DBF_DEBUG, __func__);
293d984f Peter Tiedemann 2008-02-08 218
293d984f Peter Tiedemann 2008-02-08 219 while ((skb = skb_dequeue(q))) {
293d984f Peter Tiedemann 2008-02-08 @220 atomic_dec(&skb->users);
293d984f Peter Tiedemann 2008-02-08 221 dev_kfree_skb_any(skb);
293d984f Peter Tiedemann 2008-02-08 222 }
293d984f Peter Tiedemann 2008-02-08 223 }
:::::: The code at line 220 was first introduced by commit
:::::: 293d984f0e3604c04dcdbf00117ddc1e5d4b1909 ctcm: infrastructure for replaced ctc driver
:::::: TO: Peter Tiedemann <ptiedem@...ibm.com>
:::::: CC: Jeff Garzik <jeff@...zik.org>
---
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