Messages in this thread | | | Date | Fri, 3 Feb 2017 07:37:01 +0800 | From | kbuild test robot <> | Subject | [tip:WIP.sched/core 101/122] drivers/misc/cxl/fault.c:228:10: warning: assignment makes pointer from integer without a cast |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.sched/core head: a69a38e26e87ddbe993e33b55f693405cd62c76f commit: 18722d63da35b5846c7d79eedd1b35f46eefea07 [101/122] sched/headers, signals: Separate out task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h> config: powerpc-allmodconfig (attached as .config) compiler: powerpc64-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 18722d63da35b5846c7d79eedd1b35f46eefea07 # save the attached .config to linux build tree make.cross ARCH=powerpc
All warnings (new ones prefixed by >>):
drivers/misc/cxl/fault.c: In function 'get_mem_context': drivers/misc/cxl/fault.c:228:12: error: implicit declaration of function 'next_thread' [-Werror=implicit-function-declaration] task = next_thread(task); ^~~~~~~~~~~ >> drivers/misc/cxl/fault.c:228:10: warning: assignment makes pointer from integer without a cast [-Wint-conversion] task = next_thread(task); ^ drivers/misc/cxl/fault.c:229:22: error: implicit declaration of function 'thread_group_leader' [-Werror=implicit-function-declaration] } while (task && !thread_group_leader(task)); ^~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors
vim +228 drivers/misc/cxl/fault.c
7b8ad495 Vaibhav Jain 2015-11-24 212 * If we couldn't find the mm context then use the group 7b8ad495 Vaibhav Jain 2015-11-24 213 * leader to iterate over the task group and find a task 7b8ad495 Vaibhav Jain 2015-11-24 214 * that gives us mm_struct. 7b8ad495 Vaibhav Jain 2015-11-24 215 */ 7b8ad495 Vaibhav Jain 2015-11-24 216 if (unlikely(mm == NULL && ctx->glpid != NULL)) { 7b8ad495 Vaibhav Jain 2015-11-24 217 7b8ad495 Vaibhav Jain 2015-11-24 218 rcu_read_lock(); 7b8ad495 Vaibhav Jain 2015-11-24 219 task = pid_task(ctx->glpid, PIDTYPE_PID); 7b8ad495 Vaibhav Jain 2015-11-24 220 if (task) 7b8ad495 Vaibhav Jain 2015-11-24 221 do { 7b8ad495 Vaibhav Jain 2015-11-24 222 mm = get_task_mm(task); 7b8ad495 Vaibhav Jain 2015-11-24 223 if (mm) { 7b8ad495 Vaibhav Jain 2015-11-24 224 ctx->pid = get_task_pid(task, 7b8ad495 Vaibhav Jain 2015-11-24 225 PIDTYPE_PID); 7b8ad495 Vaibhav Jain 2015-11-24 226 break; 7b8ad495 Vaibhav Jain 2015-11-24 227 } 7b8ad495 Vaibhav Jain 2015-11-24 @228 task = next_thread(task); 7b8ad495 Vaibhav Jain 2015-11-24 229 } while (task && !thread_group_leader(task)); 7b8ad495 Vaibhav Jain 2015-11-24 230 rcu_read_unlock(); 7b8ad495 Vaibhav Jain 2015-11-24 231 7b8ad495 Vaibhav Jain 2015-11-24 232 /* check if we switched pid */ 7b8ad495 Vaibhav Jain 2015-11-24 233 if (ctx->pid != old_pid) { 7b8ad495 Vaibhav Jain 2015-11-24 234 if (mm) 7b8ad495 Vaibhav Jain 2015-11-24 235 pr_devel("%s:pe=%i switch pid %i->%i\n", 7b8ad495 Vaibhav Jain 2015-11-24 236 __func__, ctx->pe, pid_nr(old_pid),
:::::: The code at line 228 was first introduced by commit :::::: 7b8ad495d59280b634a7b546f4cdf58cf4d65f61 cxl: Fix DSI misses when the context owning task exits
:::::: TO: Vaibhav Jain <vaibhav@linux.vnet.ibm.com> :::::: CC: Michael Ellerman <mpe@ellerman.id.au>
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