tree: https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next head: 9e65623302550096dd047c670d9560806b02d112 commit: 21a2807bc3ff0eec3e2ec35357a4c37d4bcbfd5b [11/12] dm: refactor ioctl handling config: x86_64-randconfig-x018-201544 (attached as .config) reproduce: git checkout 21a2807bc3ff0eec3e2ec35357a4c37d4bcbfd5b # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): drivers/md/dm-mpath.c: In function 'multipath_prepare_ioctl': >> drivers/md/dm-mpath.c:1570:41: error: 'cmd' undeclared (first use in this function) int err = scsi_verify_blk_ioctl(NULL, cmd); ^ drivers/md/dm-mpath.c:1570:41: note: each undeclared identifier is reported only once for each function it appears in vim +/cmd +1570 drivers/md/dm-mpath.c 9af4aa30 Milan Broz 2006-10-03 1564 ec8013be Paolo Bonzini 2012-01-12 1565 /* ec8013be Paolo Bonzini 2012-01-12 1566 * Only pass ioctls through if the device sizes match exactly. ec8013be Paolo Bonzini 2012-01-12 1567 */ 21a2807b Christoph Hellwig 2015-10-15 1568 if (!*bdev || ti->len != i_size_read((*bdev)->bd_inode) >> SECTOR_SHIFT) { 21a2807b Christoph Hellwig 2015-10-15 1569 /* not deferring to DM core to verify the ioctl */ a1989b33 Hannes Reinecke 2014-02-26 @1570 int err = scsi_verify_blk_ioctl(NULL, cmd); a1989b33 Hannes Reinecke 2014-02-26 1571 if (err) a1989b33 Hannes Reinecke 2014-02-26 1572 r = err; a1989b33 Hannes Reinecke 2014-02-26 1573 } :::::: The code at line 1570 was first introduced by commit :::::: a1989b330093578ea5470bea0a00f940c444c466 dm mpath: fix stalls when handling invalid ioctls :::::: TO: Hannes Reinecke <hare@xxxxxxx> :::::: CC: Mike Snitzer <snitzer@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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