tree: https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git devel head: d61595c5423534810c1a3c0d4a88dd2fd81d750c commit: 8825023d7d2eb9e5dc298ad1996a0c753b2c4580 [8/33] tty: add kfifo to tty_port config: s390-randconfig-r044-20211215 (https://download.01.org/0day-ci/archive/20211216/202112160239.cdlehqr0-lk...) compiler: s390-linux-gcc (GCC) 11.2.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git/commi... git remote add jirislaby https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git git fetch --no-tags jirislaby devel git checkout 8825023d7d2eb9e5dc298ad1996a0c753b2c4580 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=s390 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/tty/tty_port.c: In function 'tty_port_alloc_xmit_buf': drivers/tty/tty_port.c:228:9: warning: 'xmit_buf' is deprecated [-Wdeprecated-declarations] 228 | if (port->xmit_buf == NULL) | ^~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ drivers/tty/tty_port.c:228:9: warning: 'xmit_buf' is deprecated [-Wdeprecated-declarations] 228 | if (port->xmit_buf == NULL) | ^~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ In file included from include/linux/build_bug.h:5, from include/linux/container_of.h:5, from include/linux/list.h:5, from include/linux/wait.h:7, from include/linux/wait_bit.h:8, from include/linux/fs.h:6, from include/linux/tty.h:5, from drivers/tty/tty_port.c:8: 61 | static struct ftrace_branch_data \ | ^~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:69: note: in expansion of macro '__trace_if_value' 58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~~~~~~~~~~~~~ include/linux/compiler.h:56:28: note: in expansion of macro '__trace_if_var' 56 | #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) | ^~~~~~~~~~~~~~ drivers/tty/tty_port.c:228:9: note: in expansion of macro 'if' 228 | if (port->xmit_buf == NULL) | ^~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ drivers/tty/tty_port.c:229:17: warning: 'xmit_buf' is deprecated [-Wdeprecated-declarations] 229 | port->xmit_buf = (unsigned char *)get_zeroed_page(GFP_KERNEL); | ^~~~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ drivers/tty/tty_port.c:231:9: warning: 'xmit_buf' is deprecated [-Wdeprecated-declarations] 231 | if (port->xmit_buf == NULL) | ^~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ drivers/tty/tty_port.c:231:9: warning: 'xmit_buf' is deprecated [-Wdeprecated-declarations] 231 | if (port->xmit_buf == NULL) | ^~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ In file included from include/linux/build_bug.h:5, from include/linux/container_of.h:5, from include/linux/list.h:5, from include/linux/wait.h:7, from include/linux/wait_bit.h:8, from include/linux/fs.h:6, from include/linux/tty.h:5, from drivers/tty/tty_port.c:8: 61 | static struct ftrace_branch_data \ | ^~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:69: note: in expansion of macro '__trace_if_value' 58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~~~~~~~~~~~~~ include/linux/compiler.h:56:28: note: in expansion of macro '__trace_if_var' 56 | #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) | ^~~~~~~~~~~~~~ drivers/tty/tty_port.c:231:9: note: in expansion of macro 'if' 231 | if (port->xmit_buf == NULL) | ^~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ drivers/tty/tty_port.c: In function 'tty_port_free_xmit_buf': drivers/tty/tty_port.c:240:9: warning: 'xmit_buf' is deprecated [-Wdeprecated-declarations] 240 | if (port->xmit_buf != NULL) { | ^~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ drivers/tty/tty_port.c:240:9: warning: 'xmit_buf' is deprecated [-Wdeprecated-declarations] 240 | if (port->xmit_buf != NULL) { | ^~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ In file included from include/linux/build_bug.h:5, from include/linux/container_of.h:5, from include/linux/list.h:5, from include/linux/wait.h:7, from include/linux/wait_bit.h:8, from include/linux/fs.h:6, from include/linux/tty.h:5, from drivers/tty/tty_port.c:8: 61 | static struct ftrace_branch_data \ | ^~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:69: note: in expansion of macro '__trace_if_value' 58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~~~~~~~~~~~~~ include/linux/compiler.h:56:28: note: in expansion of macro '__trace_if_var' 56 | #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) | ^~~~~~~~~~~~~~ drivers/tty/tty_port.c:240:9: note: in expansion of macro 'if' 240 | if (port->xmit_buf != NULL) { | ^~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ drivers/tty/tty_port.c:241:17: warning: 'xmit_buf' is deprecated [-Wdeprecated-declarations] 241 | free_page((unsigned long)port->xmit_buf); | ^~~~~~~~~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ drivers/tty/tty_port.c:242:17: warning: 'xmit_buf' is deprecated [-Wdeprecated-declarations] 242 | port->xmit_buf = NULL; | ^~~~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ drivers/tty/tty_port.c: In function 'tty_port_destructor': drivers/tty/tty_port.c:270:9: warning: 'xmit_buf' is deprecated [-Wdeprecated-declarations] 270 | if (port->xmit_buf) | ^~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ drivers/tty/tty_port.c:270:9: warning: 'xmit_buf' is deprecated [-Wdeprecated-declarations] 270 | if (port->xmit_buf) | ^~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ In file included from include/linux/build_bug.h:5, from include/linux/container_of.h:5, from include/linux/list.h:5, from include/linux/wait.h:7, from include/linux/wait_bit.h:8, from include/linux/fs.h:6, from include/linux/tty.h:5, from drivers/tty/tty_port.c:8: 61 | static struct ftrace_branch_data \ | ^~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:69: note: in expansion of macro '__trace_if_value' 58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~~~~~~~~~~~~~ include/linux/compiler.h:56:28: note: in expansion of macro '__trace_if_var' 56 | #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) | ^~~~~~~~~~~~~~ drivers/tty/tty_port.c:270:9: note: in expansion of macro 'if' 270 | if (port->xmit_buf) | ^~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ drivers/tty/tty_port.c:271:17: warning: 'xmit_buf' is deprecated [-Wdeprecated-declarations] 271 | free_page((unsigned long)port->xmit_buf); | ^~~~~~~~~ In file included from include/linux/tty.h:12, from drivers/tty/tty_port.c:8: include/linux/tty_port.h:115:34: note: declared here 115 | unsigned char *xmit_buf __attribute__((deprecated)); | ^~~~~~~~ vim +/xmit_buf +61 include/linux/compiler.h a15fd609ad53a6 Linus Torvalds 2019-03-20 59 a15fd609ad53a6 Linus Torvalds 2019-03-20 60 #define __trace_if_value(cond) ({ \ 2bcd521a684cc9 Steven Rostedt 2008-11-21 @61 static struct ftrace_branch_data \ e04462fb82f8dd Miguel Ojeda 2018-09-03 62 __aligned(4) \ 33def8498fdde1 Joe Perches 2020-10-21 63 __section("_ftrace_branch") \ a15fd609ad53a6 Linus Torvalds 2019-03-20 64 __if_trace = { \ 2bcd521a684cc9 Steven Rostedt 2008-11-21 65 .func = __func__, \ 2bcd521a684cc9 Steven Rostedt 2008-11-21 66 .file = __FILE__, \ 2bcd521a684cc9 Steven Rostedt 2008-11-21 67 .line = __LINE__, \ 2bcd521a684cc9 Steven Rostedt 2008-11-21 68 }; \ a15fd609ad53a6 Linus Torvalds 2019-03-20 69 (cond) ? \ a15fd609ad53a6 Linus Torvalds 2019-03-20 70 (__if_trace.miss_hit[1]++,1) : \ a15fd609ad53a6 Linus Torvalds 2019-03-20 71 (__if_trace.miss_hit[0]++,0); \ a15fd609ad53a6 Linus Torvalds 2019-03-20 72 }) a15fd609ad53a6 Linus Torvalds 2019-03-20 73 :::::: The code at line 61 was first introduced by commit :::::: 2bcd521a684cc94befbe2ce7d5b613c841b0d304 trace: profile all if conditionals :::::: TO: Steven Rostedt <srostedt(a)redhat.com&gt; :::::: CC: Ingo Molnar <mingo(a)elte.hu&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org