From: Fengguang Wu <fengguang.wu@intel.com>
To: kernel-janitors@vger.kernel.org
Subject: [signal:master 102/105] kernel/signal.c:3117:1: sparse: symbol 'sys_sigaltstack' redeclared with dif
Date: Tue, 02 Oct 2012 02:06:34 +0000 [thread overview]
Message-ID: <20121002020634.GA6006@localhost> (raw)
Hi Al,
FYI, there are new sparse warnings show up in
tree: git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal.git master
head: 3c33d2e266a793154e52533c7b20f5c090fa08ed
commit: 9bea9f53e6d85b91d9e525299b9ac9754e8770b5 [102/105] x86, um: sigaltstack conversion
? kernel/signal.c:3117:1: sparse: symbol 'sys_sigaltstack' redeclared with different type (originally declared at include/linux/syscalls.h:865) - incompatible argument 2 (different address spaces)
vim +3117 kernel/signal.c
^1da177e (Linus Torvalds 2005-04-16 3115)
61143440 (Al Viro 2012-06-04 3116) #ifdef __ARCH_WANT_SYS_SIGALTSTACK
61143440 (Al Viro 2012-06-04 @3117) SYSCALL_DEFINE2(sigaltstack, const stack_t __user *, uss, stack_t *, uoss)
61143440 (Al Viro 2012-06-04 3118) {
61143440 (Al Viro 2012-06-04 3119) return do_sigaltstack(uss, uoss, current_user_stack_pointer());
61143440 (Al Viro 2012-06-04 3120) }
61143440 (Al Viro 2012-06-04 3121) #endif
61143440 (Al Viro 2012-06-04 3122)
^1da177e (Linus Torvalds 2005-04-16 3123) #ifdef __ARCH_WANT_SYS_SIGPENDING
^1da177e (Linus Torvalds 2005-04-16 3124)
41c57892 (Randy Dunlap 2011-04-04 3125) /**
41c57892 (Randy Dunlap 2011-04-04 3126) * sys_sigpending - examine pending signals
41c57892 (Randy Dunlap 2011-04-04 3127) * @set: where mask of pending signal is returned
41c57892 (Randy Dunlap 2011-04-04 3128) */
b290ebe2 (Heiko Carstens 2009-01-14 3129) SYSCALL_DEFINE1(sigpending, old_sigset_t __user *, set)
^1da177e (Linus Torvalds 2005-04-16 3130) {
^1da177e (Linus Torvalds 2005-04-16 3131) return do_sigpending(set, sizeof(*set));
^1da177e (Linus Torvalds 2005-04-16 3132) }
^1da177e (Linus Torvalds 2005-04-16 3133)
The code at line 3117 was first introduced by commit:
6114344 sigaltack cleanups series - beginning
---
0-DAY kernel build testing backend Open Source Technology Centre
Fengguang Wu, Yuanhan Liu Intel Corporation
reply other threads:[~2012-10-02 2:06 UTC|newest]
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