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Message-ID: <3fcf3a2c-1c1b-42c1-bacb-78fdcd700389@linux.vnet.ibm.com>
Date: Wed, 28 Feb 2024 16:39:56 +0530
From: Tasmiya Nalatwad <tasmiya@...ux.vnet.ibm.com>
To: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>
Cc: edumazet@...gle.com, arkadiusz.kubalewski@...el.com,
vadim.fedorenko@...ux.dev, jiri@...dia.com, kuba@...nel.org,
"abdhalee@...ux.vnet.ibm.com" <abdhalee@...ux.vnet.ibm.com>,
"mputtash@...ux.vnet.com" <mputtash@...ux.vnet.com>,
"sachinp@...ux.vnet.com" <sachinp@...ux.vnet.com>,
venkat88@...ux.vnet.ibm.com
Subject: [revert 0d60d8df6f49] [net/net-next] [6.8-rc5] Build Failure
Greetings,
[revert 0d60d8df6f49] [net/net-next] [6.8-rc5] Build Failure
Reverting below commit fixes the issue
commit 0d60d8df6f493bb46bf5db40d39dd60a1bafdd4e
dpll: rely on rcu for netdev_dpll_pin()
--- Traces ---
/include/linux/dpll.h: In function ‘netdev_dpll_pin’:
/include/linux/rcupdate.h:439:9: error: dereferencing pointer to
incomplete type ‘struct dpll_pin’
typeof(*p) *local = (typeof(*p) *__force)READ_ONCE(p); \
^
/include/linux/rcupdate.h:587:2: note: in expansion of macro
‘__rcu_dereference_check’
__rcu_dereference_check((p), __UNIQUE_ID(rcu), \
^~~~~~~~~~~~~~~~~~~~~~~
/include/linux/rtnetlink.h:70:2: note: in expansion of macro
‘rcu_dereference_check’
rcu_dereference_check(p, lockdep_rtnl_is_held())
^~~~~~~~~~~~~~~~~~~~~
/include/linux/dpll.h:175:9: note: in expansion of macro
‘rcu_dereference_rtnl’
return rcu_dereference_rtnl(dev->dpll_pin);
^~~~~~~~~~~~~~~~~~~~
make[4]: *** [scripts/Makefile.build:243: drivers/dpll/dpll_core.o] Error 1
make[4]: *** Waiting for unfinished jobs....
AR net/mpls/built-in.a
AR net/l3mdev/built-in.a
In file included from ./include/linux/rbtree.h:24,
from ./include/linux/mm_types.h:11,
from ./include/linux/mmzone.h:22,
from ./include/linux/gfp.h:7,
from ./include/linux/umh.h:4,
from ./include/linux/kmod.h:9,
from ./include/linux/module.h:17,
from drivers/dpll/dpll_netlink.c:9:
/include/linux/dpll.h: In function ‘netdev_dpll_pin’:
/include/linux/rcupdate.h:439:9: error: dereferencing pointer to
incomplete type ‘struct dpll_pin’
typeof(*p) *local = (typeof(*p) *__force)READ_ONCE(p); \
^
/include/linux/rcupdate.h:587:2: note: in expansion of macro
‘__rcu_dereference_check’
__rcu_dereference_check((p), __UNIQUE_ID(rcu), \
^~~~~~~~~~~~~~~~~~~~~~~
/include/linux/rtnetlink.h:70:2: note: in expansion of macro
‘rcu_dereference_check’
rcu_dereference_check(p, lockdep_rtnl_is_held())
^~~~~~~~~~~~~~~~~~~~~
/include/linux/dpll.h:175:9: note: in expansion of macro
‘rcu_dereference_rtnl’
return rcu_dereference_rtnl(dev->dpll_pin);
^~~~~~~~~~~~~~~~~~~~
make[4]: *** [scripts/Makefile.build:243: drivers/dpll/dpll_netlink.o]
Error 1
make[3]: *** [scripts/Makefile.build:481: drivers/dpll] Error 2
make[3]: *** Waiting for unfinished jobs....
In file included from ./arch/powerpc/include/generated/asm/rwonce.h:1,
from ./include/linux/compiler.h:251,
from ./include/linux/instrumented.h:10,
from ./include/linux/uaccess.h:6,
from net/core/dev.c:71:
net/core/dev.c: In function ‘netdev_dpll_pin_assign’:
/include/linux/rcupdate.h:462:36: error: dereferencing pointer to
incomplete type ‘struct dpll_pin’
#define RCU_INITIALIZER(v) (typeof(*(v)) __force __rcu *)(v)
^~~~
/include/asm-generic/rwonce.h:55:33: note: in definition of macro
‘__WRITE_ONCE’
*(volatile typeof(x) *)&(x) = (val); \
^~~
/arch/powerpc/include/asm/barrier.h:76:2: note: in expansion of macro
‘WRITE_ONCE’
WRITE_ONCE(*p, v); \
^~~~~~~~~~
/include/asm-generic/barrier.h:172:55: note: in expansion of macro
‘__smp_store_release’
#define smp_store_release(p, v) do { kcsan_release();
__smp_store_release(p, v); } while (0)
^~~~~~~~~~~~~~~~~~~
/include/linux/rcupdate.h:503:3: note: in expansion of macro
‘smp_store_release’
smp_store_release(&p, RCU_INITIALIZER((typeof(p))_r_a_p__v)); \
^~~~~~~~~~~~~~~~~
/include/linux/rcupdate.h:503:25: note: in expansion of macro
‘RCU_INITIALIZER’
smp_store_release(&p, RCU_INITIALIZER((typeof(p))_r_a_p__v)); \
^~~~~~~~~~~~~~~
net/core/dev.c:9081:2: note: in expansion of macro ‘rcu_assign_pointer’
rcu_assign_pointer(dev->dpll_pin, dpll_pin);
^~~~~~~~~~~~~~~~~~
make[4]: *** [scripts/Makefile.build:243: net/core/dev.o] Error 1
make[4]: *** Waiting for unfinished jobs....
AR drivers/net/ethernet/built-in.a
AR drivers/net/built-in.a
AR net/dcb/built-in.a
AR net/netlabel/built-in.a
AR net/strparser/built-in.a
AR net/handshake/built-in.a
GEN lib/test_fortify.log
AR net/8021q/built-in.a
AR net/nsh/built-in.a
AR net/unix/built-in.a
CC lib/string.o
AR net/packet/built-in.a
AR net/switchdev/built-in.a
AR lib/lib.a
AR net/mptcp/built-in.a
AR net/devlink/built-in.a
In file included from ./include/linux/rbtree.h:24,
from ./include/linux/mm_types.h:11,
from ./include/linux/mmzone.h:22,
from ./include/linux/gfp.h:7,
from ./include/linux/umh.h:4,
from ./include/linux/kmod.h:9,
from ./include/linux/module.h:17,
from net/core/rtnetlink.c:17:
/include/linux/dpll.h: In function ‘netdev_dpll_pin’:
/include/linux/rcupdate.h:439:9: error: dereferencing pointer to
incomplete type ‘struct dpll_pin’
typeof(*p) *local = (typeof(*p) *__force)READ_ONCE(p); \
^
/include/linux/rcupdate.h:587:2: note: in expansion of macro
‘__rcu_dereference_check’
__rcu_dereference_check((p), __UNIQUE_ID(rcu), \
^~~~~~~~~~~~~~~~~~~~~~~
/include/linux/rtnetlink.h:70:2: note: in expansion of macro
‘rcu_dereference_check’
rcu_dereference_check(p, lockdep_rtnl_is_held())
^~~~~~~~~~~~~~~~~~~~~
/include/linux/dpll.h:175:9: note: in expansion of macro
‘rcu_dereference_rtnl’
return rcu_dereference_rtnl(dev->dpll_pin);
^~~~~~~~~~~~~~~~~~~~
In file included from net/core/rtnetlink.c:60:
/include/linux/dpll.h:179:1: error: control reaches end of non-void
function [-Werror=return-type]
}
--
Regards,
Tasmiya Nalatwad
IBM Linux Technology Center
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