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McKenney" Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [paulmck-rcu:dev.2024.08.30a 27/33] include/linux/srcu.h:246:37: error: 'SRCU_READ_FLAVOR_NORMAL' undeclared Message-ID: <202408311318.wcMCNEWH-lkp@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2024.08.30a head: 05416eb79213ad6a9770faa795059fdd00adb6e0 commit: d4401cc54f3e2985675be825f5222aff9764ab8b [27/33] srcu: Convert srcu_data ->srcu_reader_flavor to bit field config: m68k-randconfig-r072-20240831 (https://download.01.org/0day-ci/archive/20240831/202408311318.wcMCNEWH-lkp@intel.com/config) compiler: m68k-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240831/202408311318.wcMCNEWH-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202408311318.wcMCNEWH-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from include/linux/notifier.h:16, from include/linux/memory_hotplug.h:7, from include/linux/mmzone.h:1432, from include/linux/topology.h:33, from include/linux/irq.h:19, from include/asm-generic/hardirq.h:17, from ./arch/m68k/include/generated/asm/hardirq.h:1, from include/linux/hardirq.h:11, from include/linux/interrupt.h:11, from include/linux/kernel_stat.h:8, from arch/m68k/kernel/asm-offsets.c:16: include/linux/srcu.h: In function 'srcu_read_lock': >> include/linux/srcu.h:246:37: error: 'SRCU_READ_FLAVOR_NORMAL' undeclared (first use in this function) 246 | srcu_check_read_flavor(ssp, SRCU_READ_FLAVOR_NORMAL); | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/srcu.h:246:37: note: each undeclared identifier is reported only once for each function it appears in include/linux/srcu.h: In function 'srcu_read_lock_nmisafe': >> include/linux/srcu.h:267:37: error: 'SRCU_READ_FLAVOR_NMI' undeclared (first use in this function) 267 | srcu_check_read_flavor(ssp, SRCU_READ_FLAVOR_NMI); | ^~~~~~~~~~~~~~~~~~~~ include/linux/srcu.h: In function 'srcu_read_lock_notrace': include/linux/srcu.h:279:37: error: 'SRCU_READ_FLAVOR_NORMAL' undeclared (first use in this function) 279 | srcu_check_read_flavor(ssp, SRCU_READ_FLAVOR_NORMAL); | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/srcu.h: In function 'srcu_down_read': include/linux/srcu.h:308:37: error: 'SRCU_READ_FLAVOR_NORMAL' undeclared (first use in this function) 308 | srcu_check_read_flavor(ssp, SRCU_READ_FLAVOR_NORMAL); | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/srcu.h: In function 'srcu_read_unlock': include/linux/srcu.h:323:37: error: 'SRCU_READ_FLAVOR_NORMAL' undeclared (first use in this function) 323 | srcu_check_read_flavor(ssp, SRCU_READ_FLAVOR_NORMAL); | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/srcu.h: In function 'srcu_read_unlock_nmisafe': include/linux/srcu.h:339:37: error: 'SRCU_READ_FLAVOR_NMI' undeclared (first use in this function) 339 | srcu_check_read_flavor(ssp, SRCU_READ_FLAVOR_NMI); | ^~~~~~~~~~~~~~~~~~~~ include/linux/srcu.h: In function 'srcu_read_unlock_notrace': include/linux/srcu.h:348:37: error: 'SRCU_READ_FLAVOR_NORMAL' undeclared (first use in this function) 348 | srcu_check_read_flavor(ssp, SRCU_READ_FLAVOR_NORMAL); | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/srcu.h: In function 'srcu_up_read': include/linux/srcu.h:365:37: error: 'SRCU_READ_FLAVOR_NORMAL' undeclared (first use in this function) 365 | srcu_check_read_flavor(ssp, SRCU_READ_FLAVOR_NORMAL); | ^~~~~~~~~~~~~~~~~~~~~~~ make[3]: *** [scripts/Makefile.build:117: arch/m68k/kernel/asm-offsets.s] Error 1 make[3]: Target 'prepare' not remade because of errors. make[2]: *** [Makefile:1193: prepare0] Error 2 make[2]: Target 'prepare' not remade because of errors. make[1]: *** [Makefile:224: __sub-make] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:224: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +/SRCU_READ_FLAVOR_NORMAL +246 include/linux/srcu.h 221 222 /** 223 * srcu_read_lock - register a new reader for an SRCU-protected structure. 224 * @ssp: srcu_struct in which to register the new reader. 225 * 226 * Enter an SRCU read-side critical section. Note that SRCU read-side 227 * critical sections may be nested. However, it is illegal to 228 * call anything that waits on an SRCU grace period for the same 229 * srcu_struct, whether directly or indirectly. Please note that 230 * one way to indirectly wait on an SRCU grace period is to acquire 231 * a mutex that is held elsewhere while calling synchronize_srcu() or 232 * synchronize_srcu_expedited(). 233 * 234 * The return value from srcu_read_lock() must be passed unaltered 235 * to the matching srcu_read_unlock(). Note that srcu_read_lock() and 236 * the matching srcu_read_unlock() must occur in the same context, for 237 * example, it is illegal to invoke srcu_read_unlock() in an irq handler 238 * if the matching srcu_read_lock() was invoked in process context. Or, 239 * for that matter to invoke srcu_read_unlock() from one task and the 240 * matching srcu_read_lock() from another. 241 */ 242 static inline int srcu_read_lock(struct srcu_struct *ssp) __acquires(ssp) 243 { 244 int retval; 245 > 246 srcu_check_read_flavor(ssp, SRCU_READ_FLAVOR_NORMAL); 247 retval = __srcu_read_lock(ssp); 248 srcu_lock_acquire(&ssp->dep_map); 249 return retval; 250 } 251 252 /** 253 * srcu_read_lock_nmisafe - register a new reader for an SRCU-protected structure. 254 * @ssp: srcu_struct in which to register the new reader. 255 * 256 * Enter an SRCU read-side critical section, but in an NMI-safe manner. 257 * See srcu_read_lock() for more information. 258 * 259 * If srcu_read_lock_nmisafe() is ever used on an srcu_struct structure, 260 * then none of the other flavors may be used, whether before, during, 261 * or after. 262 */ 263 static inline int srcu_read_lock_nmisafe(struct srcu_struct *ssp) __acquires(ssp) 264 { 265 int retval; 266 > 267 srcu_check_read_flavor(ssp, SRCU_READ_FLAVOR_NMI); 268 retval = __srcu_read_lock_nmisafe(ssp); 269 rcu_try_lock_acquire(&ssp->dep_map); 270 return retval; 271 } 272 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki