[stable:linux-4.19.y 3835/9999] include/linux/pagemap.h:576: Error: unrecognized opcode `csrs sstatus,s4'

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-4.19.y
head:   53b696f0584acce2e90db69272a2a11aab138370
commit: 91567128a9cbe55a4c133b900d73e6f56fef8f59 [3835/9999] btrfs: fix wrong address when faulting in pages in the search ioctl
config: riscv-randconfig-c44-20230212 (https://download.01.org/0day-ci/archive/20230214/202302140706.HJDNA8li-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.git/commit/?id=91567128a9cbe55a4c133b900d73e6f56fef8f59
        git remote add stable https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
        git fetch --no-tags stable linux-4.19.y
        git checkout 91567128a9cbe55a4c133b900d73e6f56fef8f59
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302140706.HJDNA8li-lkp@intel.com/

All errors (new ones prefixed by >>):

   include/linux/pagemap.h: Assembler messages:
>> include/linux/pagemap.h:576: Error: unrecognized opcode `csrs sstatus,s4'
>> include/linux/pagemap.h:576: Error: unrecognized opcode `csrc sstatus,s4'
   include/linux/pagemap.h:584: Error: unrecognized opcode `csrs sstatus,s4'
   include/linux/pagemap.h:584: Error: unrecognized opcode `csrc sstatus,s4'
   fs/btrfs/ioctl.c:482: Error: unrecognized opcode `csrs sstatus,a4'
   fs/btrfs/ioctl.c:482: Error: unrecognized opcode `csrc sstatus,a4'


vim +576 include/linux/pagemap.h

385e1ca5f21c46 David Howells  2009-04-03  558  
^1da177e4c3f41 Linus Torvalds 2005-04-16  559  /*
4bce9f6ee8f84f Al Viro        2016-09-17  560   * Fault everything in given userspace address range in.
^1da177e4c3f41 Linus Torvalds 2005-04-16  561   */
^1da177e4c3f41 Linus Torvalds 2005-04-16  562  static inline int fault_in_pages_writeable(char __user *uaddr, int size)
f56f821feb7b36 Daniel Vetter  2012-03-25  563  {
9923777dff4543 Daniel Vetter  2012-04-14  564  	char __user *end = uaddr + size - 1;
f56f821feb7b36 Daniel Vetter  2012-03-25  565  
f56f821feb7b36 Daniel Vetter  2012-03-25  566  	if (unlikely(size == 0))
e23d4159b10916 Al Viro        2016-09-20  567  		return 0;
f56f821feb7b36 Daniel Vetter  2012-03-25  568  
e23d4159b10916 Al Viro        2016-09-20  569  	if (unlikely(uaddr > end))
e23d4159b10916 Al Viro        2016-09-20  570  		return -EFAULT;
f56f821feb7b36 Daniel Vetter  2012-03-25  571  	/*
f56f821feb7b36 Daniel Vetter  2012-03-25  572  	 * Writing zeroes into userspace here is OK, because we know that if
f56f821feb7b36 Daniel Vetter  2012-03-25  573  	 * the zero gets there, we'll be overwriting it.
f56f821feb7b36 Daniel Vetter  2012-03-25  574  	 */
e23d4159b10916 Al Viro        2016-09-20  575  	do {
e23d4159b10916 Al Viro        2016-09-20 @576  		if (unlikely(__put_user(0, uaddr) != 0))
e23d4159b10916 Al Viro        2016-09-20  577  			return -EFAULT;
f56f821feb7b36 Daniel Vetter  2012-03-25  578  		uaddr += PAGE_SIZE;
e23d4159b10916 Al Viro        2016-09-20  579  	} while (uaddr <= end);
f56f821feb7b36 Daniel Vetter  2012-03-25  580  
f56f821feb7b36 Daniel Vetter  2012-03-25  581  	/* Check whether the range spilled into the next page. */
f56f821feb7b36 Daniel Vetter  2012-03-25  582  	if (((unsigned long)uaddr & PAGE_MASK) ==
f56f821feb7b36 Daniel Vetter  2012-03-25  583  			((unsigned long)end & PAGE_MASK))
e23d4159b10916 Al Viro        2016-09-20  584  		return __put_user(0, end);
f56f821feb7b36 Daniel Vetter  2012-03-25  585  
e23d4159b10916 Al Viro        2016-09-20  586  	return 0;
f56f821feb7b36 Daniel Vetter  2012-03-25  587  }
f56f821feb7b36 Daniel Vetter  2012-03-25  588  

:::::: The code at line 576 was first introduced by commit
:::::: e23d4159b109167126e5bcd7f3775c95de7fee47 fix fault_in_multipages_...() on architectures with no-op access_ok()

:::::: TO: Al Viro <viro@ZenIV.linux.org.uk>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

-- 
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https://github.com/intel/lkp-tests