Messages in this thread | | | Date | Sat, 11 Feb 2017 08:37:16 +0800 | From | kbuild test robot <> | Subject | [rcu:rcu/dev 31/38] kernel/rcu/rcu_segcblist.h:77:2: error: implicit declaration of function 'prefetch' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/dev head: 1f7c9e1bb76b7dc50e515bd6ce9b3a8526377d17 commit: 0e629d6798567fe31bcf7e16ba5c5affcad15059 [31/38] rcu: Abstract multi-tail callback list handling config: parisc-allyesconfig (attached as .config) compiler: hppa-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 0e629d6798567fe31bcf7e16ba5c5affcad15059 # save the attached .config to linux build tree make.cross ARCH=parisc
All errors (new ones prefixed by >>):
In file included from kernel/rcu/tree.h:32:0, from kernel/rcu/tree_trace.c:46: kernel/rcu/rcu_segcblist.h: In function 'rcu_cblist_dequeue': >> kernel/rcu/rcu_segcblist.h:77:2: error: implicit declaration of function 'prefetch' [-Werror=implicit-function-declaration] prefetch(rhp); ^~~~~~~~ cc1: some warnings being treated as errors
vim +/prefetch +77 kernel/rcu/rcu_segcblist.h
71 { 72 struct rcu_head *rhp; 73 74 rhp = rclp->head; 75 if (!rhp) 76 return NULL; > 77 prefetch(rhp); 78 rclp->len--; 79 rclp->head = rhp->next; 80 if (!rclp->head)
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