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Donenfeld" Subject: [linux-stable-rc:linux-4.19.y 3113/3346] drivers/char/random.c:1336: Error: unrecognized opcode `csrs sstatus,s7' Message-ID: <202207231617.45IdglVZ-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y head: 175b775c36289cb206f50956f0056174bb335312 commit: 1923d9a8a08684c063da049fa9d5d8139edbbcbb [3113/3346] random: convert to using fops->write_iter() config: riscv-randconfig-c041-20220722 (https://download.01.org/0day-ci/archive/20220723/202207231617.45IdglVZ-lkp@intel.com/config) compiler: riscv64-linux-gcc (GCC) 12.1.0 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/stable/linux-stable-rc.git/commit/?id=1923d9a8a08684c063da049fa9d5d8139edbbcbb git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git fetch --no-tags linux-stable-rc linux-4.19.y git checkout 1923d9a8a08684c063da049fa9d5d8139edbbcbb # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/char/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All errors (new ones prefixed by >>): arch/riscv/include/asm/irqflags.h: Assembler messages: arch/riscv/include/asm/irqflags.h:36: Error: unrecognized opcode `csrc sstatus,2' arch/riscv/include/asm/irqflags.h:30: Error: unrecognized opcode `csrs sstatus,2' arch/riscv/include/asm/irqflags.h:30: Error: unrecognized opcode `csrs sstatus,2' arch/riscv/include/asm/irqflags.h:42: Error: unrecognized opcode `csrrc s7,sstatus,2' arch/riscv/include/asm/irqflags.h:60: Error: unrecognized opcode `csrs sstatus,0' arch/riscv/include/asm/irqflags.h:60: Error: unrecognized opcode `csrs sstatus,s7' drivers/char/random.c:1316: Error: unrecognized opcode `csrs sstatus,a3' drivers/char/random.c:1316: Error: unrecognized opcode `csrc sstatus,a3' drivers/char/random.c:1322: Error: unrecognized opcode `csrs sstatus,a4' drivers/char/random.c:1322: Error: unrecognized opcode `csrc sstatus,a4' >> drivers/char/random.c:1336: Error: unrecognized opcode `csrs sstatus,s7' >> drivers/char/random.c:1336: Error: unrecognized opcode `csrc sstatus,s7' drivers/char/random.c:1340: Error: unrecognized opcode `csrs sstatus,s7' drivers/char/random.c:1340: Error: unrecognized opcode `csrc sstatus,s7' arch/riscv/include/asm/irqflags.h:42: Error: unrecognized opcode `csrrc s2,sstatus,2' arch/riscv/include/asm/irqflags.h:60: Error: unrecognized opcode `csrs sstatus,0' arch/riscv/include/asm/irqflags.h:60: Error: unrecognized opcode `csrs sstatus,s2' arch/riscv/include/asm/irqflags.h:42: Error: unrecognized opcode `csrrc s2,sstatus,2' arch/riscv/include/asm/irqflags.h:60: Error: unrecognized opcode `csrs sstatus,0' arch/riscv/include/asm/irqflags.h:60: Error: unrecognized opcode `csrs sstatus,s2' vim +1336 drivers/char/random.c 0d35cc7b3fec62 Jason A. Donenfeld 2022-02-11 1307 43ae4860ff4a35 Matt Mackall 2008-04-29 1308 static long random_ioctl(struct file *f, unsigned int cmd, unsigned long arg) ^1da177e4c3f41 Linus Torvalds 2005-04-16 1309 { ^1da177e4c3f41 Linus Torvalds 2005-04-16 1310 int __user *p = (int __user *)arg; 1923d9a8a08684 Jens Axboe 2022-05-19 1311 int ent_count; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1312 ^1da177e4c3f41 Linus Torvalds 2005-04-16 1313 switch (cmd) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 1314 case RNDGETENTCNT: 0d35cc7b3fec62 Jason A. Donenfeld 2022-02-11 1315 /* Inherently racy, no point locking. */ 85b46e0c80a637 Jason A. Donenfeld 2022-04-30 1316 if (put_user(input_pool.init_bits, p)) ^1da177e4c3f41 Linus Torvalds 2005-04-16 1317 return -EFAULT; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1318 return 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1319 case RNDADDTOENTCNT: ^1da177e4c3f41 Linus Torvalds 2005-04-16 1320 if (!capable(CAP_SYS_ADMIN)) ^1da177e4c3f41 Linus Torvalds 2005-04-16 1321 return -EPERM; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1322 if (get_user(ent_count, p)) ^1da177e4c3f41 Linus Torvalds 2005-04-16 1323 return -EFAULT; cead215ea9fdb5 Jason A. Donenfeld 2022-02-04 1324 if (ent_count < 0) cead215ea9fdb5 Jason A. Donenfeld 2022-02-04 1325 return -EINVAL; 85b46e0c80a637 Jason A. Donenfeld 2022-04-30 1326 credit_init_bits(ent_count); cead215ea9fdb5 Jason A. Donenfeld 2022-02-04 1327 return 0; 1923d9a8a08684 Jens Axboe 2022-05-19 1328 case RNDADDENTROPY: { 1923d9a8a08684 Jens Axboe 2022-05-19 1329 struct iov_iter iter; 1923d9a8a08684 Jens Axboe 2022-05-19 1330 struct iovec iov; 1923d9a8a08684 Jens Axboe 2022-05-19 1331 ssize_t ret; 1923d9a8a08684 Jens Axboe 2022-05-19 1332 int len; 1923d9a8a08684 Jens Axboe 2022-05-19 1333 ^1da177e4c3f41 Linus Torvalds 2005-04-16 1334 if (!capable(CAP_SYS_ADMIN)) ^1da177e4c3f41 Linus Torvalds 2005-04-16 1335 return -EPERM; ^1da177e4c3f41 Linus Torvalds 2005-04-16 @1336 if (get_user(ent_count, p++)) ^1da177e4c3f41 Linus Torvalds 2005-04-16 1337 return -EFAULT; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1338 if (ent_count < 0) ^1da177e4c3f41 Linus Torvalds 2005-04-16 1339 return -EINVAL; 1923d9a8a08684 Jens Axboe 2022-05-19 1340 if (get_user(len, p++)) 1923d9a8a08684 Jens Axboe 2022-05-19 1341 return -EFAULT; 1923d9a8a08684 Jens Axboe 2022-05-19 1342 ret = import_single_range(WRITE, p, len, &iov, &iter); 1923d9a8a08684 Jens Axboe 2022-05-19 1343 if (unlikely(ret)) 1923d9a8a08684 Jens Axboe 2022-05-19 1344 return ret; 1923d9a8a08684 Jens Axboe 2022-05-19 1345 ret = write_pool(&iter); 1923d9a8a08684 Jens Axboe 2022-05-19 1346 if (unlikely(ret < 0)) 1923d9a8a08684 Jens Axboe 2022-05-19 1347 return ret; 1923d9a8a08684 Jens Axboe 2022-05-19 1348 /* Since we're crediting, enforce that it was all written into the pool. */ 1923d9a8a08684 Jens Axboe 2022-05-19 1349 if (unlikely(ret != len)) ^1da177e4c3f41 Linus Torvalds 2005-04-16 1350 return -EFAULT; 85b46e0c80a637 Jason A. Donenfeld 2022-04-30 1351 credit_init_bits(ent_count); cead215ea9fdb5 Jason A. Donenfeld 2022-02-04 1352 return 0; 1923d9a8a08684 Jens Axboe 2022-05-19 1353 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 1354 case RNDZAPENTCNT: ^1da177e4c3f41 Linus Torvalds 2005-04-16 1355 case RNDCLEARPOOL: 85b46e0c80a637 Jason A. Donenfeld 2022-04-30 1356 /* No longer has any effect. */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 1357 if (!capable(CAP_SYS_ADMIN)) ^1da177e4c3f41 Linus Torvalds 2005-04-16 1358 return -EPERM; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1359 return 0; d848e5f8e1ebdb Theodore Ts'o 2018-04-11 1360 case RNDRESEEDCRNG: d848e5f8e1ebdb Theodore Ts'o 2018-04-11 1361 if (!capable(CAP_SYS_ADMIN)) d848e5f8e1ebdb Theodore Ts'o 2018-04-11 1362 return -EPERM; 13ffd431ae1032 Jason A. Donenfeld 2022-03-08 1363 if (!crng_ready()) d848e5f8e1ebdb Theodore Ts'o 2018-04-11 1364 return -ENODATA; e2fc165d51e9e3 Jason A. Donenfeld 2022-02-08 1365 crng_reseed(); d848e5f8e1ebdb Theodore Ts'o 2018-04-11 1366 return 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1367 default: ^1da177e4c3f41 Linus Torvalds 2005-04-16 1368 return -EINVAL; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1369 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 1370 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 1371 :::::: The code at line 1336 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds :::::: CC: Linus Torvalds -- 0-DAY CI Kernel Test Service https://01.org/lkp