Hi Ard,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   7c30b859a947535f2213277e827d7ac7dcff9c84
commit: be1eb7f78aa8fbe34779c56c266ccd0364604e71 crypto: essiv - create wrapper 
template for ESSIV generation
date:   10 months ago
config: microblaze-randconfig-c003-20200630 (attached as .config)
compiler: microblaze-linux-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>

All errors (new ones prefixed by >>):

   ERROR: "min_low_pfn" [drivers/hwtracing/intel_th/intel_th_msu.ko] undefined!
   ERROR: "min_low_pfn" [drivers/usb/misc/usbtest.ko] undefined!
   ERROR: "min_low_pfn" [drivers/usb/core/usbcore.ko] undefined!
   ERROR: "min_low_pfn" [drivers/dma/fsl-edma-common.ko] undefined!
>> ERROR: "min_low_pfn" [crypto/essiv.ko] undefined!
   ERROR: "min_low_pfn" [crypto/tcrypt.ko] undefined!
   ERROR: "min_low_pfn" [crypto/ccm.ko] undefined!
--
   drivers/usb/misc/legousbtower.c:721: warning: Function parameter or member 
'urb' not described in 'tower_interrupt_in_callback'
   drivers/usb/misc/legousbtower.c:780: warning: Function parameter or member 
'urb' not described in 'tower_interrupt_out_callback'
   drivers/usb/misc/legousbtower.c:808: warning: Function parameter or member 
'interface' not described in 'tower_probe'
   drivers/usb/misc/legousbtower.c:808: warning: Function parameter or member 
'id' not described in 'tower_probe'
   drivers/usb/misc/legousbtower.c:940: warning: Function parameter or member 
'interface' not described in 'tower_disconnect'
   drivers/usb/misc/iowarrior.c:241: warning: Function parameter or member 
'dev' not described in 'iowarrior_delete'
   drivers/usb/misc/iowarrior.c:268: warning: Function parameter or member 
'file' not described in 'iowarrior_read'
   drivers/usb/misc/iowarrior.c:268: warning: Function parameter or member 
'buffer' not described in 'iowarrior_read'
   drivers/usb/misc/iowarrior.c:268: warning: Function parameter or member 
'count' not described in 'iowarrior_read'
   drivers/usb/misc/iowarrior.c:268: warning: Function parameter or member 
'ppos' not described in 'iowarrior_read'
   drivers/usb/misc/iowarrior.c:465: warning: Function parameter or member 
'file' not described in 'iowarrior_ioctl'
   drivers/usb/misc/iowarrior.c:465: warning: Function parameter or member 
'cmd' not described in 'iowarrior_ioctl'
   drivers/usb/misc/iowarrior.c:465: warning: Function parameter or member 
'arg' not described in 'iowarrior_ioctl'
   drivers/usb/misc/iowarrior.c:583: warning: Function parameter or member 
'inode' not described in 'iowarrior_open'
   drivers/usb/misc/iowarrior.c:583: warning: Function parameter or member 
'file' not described in 'iowarrior_open'
   drivers/usb/misc/iowarrior.c:639: warning: Function parameter or member 
'inode' not described in 'iowarrior_release'
   drivers/usb/misc/iowarrior.c:639: warning: Function parameter or member 
'file' not described in 'iowarrior_release'
   drivers/usb/misc/iowarrior.c:745: warning: Function parameter or member 
'interface' not described in 'iowarrior_probe'
   drivers/usb/misc/iowarrior.c:745: warning: Function parameter or member 'id' 
not described in 'iowarrior_probe'
   drivers/usb/misc/iowarrior.c:862: warning: Function parameter or member 
'interface' not described in 'iowarrior_disconnect'
   drivers/tty/pty.c:112: warning: Function parameter or member 'c' not 
described in 'pty_write'
   drivers/tty/pty.c:112: warning: Excess function parameter 'count' 
description in 'pty_write'
   drivers/tty/pty.c:710: warning: Function parameter or member 'file' not 
described in 'ptm_unix98_lookup'
   drivers/tty/pty.c:726: warning: Function parameter or member 'file' not 
described in 'pts_unix98_lookup'
   fs/xfs/xfs_iops.c: In function 'xfs_setattr_nonsize':
   fs/xfs/xfs_iops.c:630:39: warning: variable 'olddquot2' set but not used 
[-Wunused-but-set-variable]
     630 |  struct xfs_dquot *olddquot1 = NULL, *olddquot2 = NULL;
         |                                       ^~~~~~~~~
   fs/xfs/xfs_iops.c:630:20: warning: variable 'olddquot1' set but not used 
[-Wunused-but-set-variable]
     630 |  struct xfs_dquot *olddquot1 = NULL, *olddquot2 = NULL;
         |                    ^~~~~~~~~
   fs/xfs/xfs_xattr.c:40:1: warning: no previous prototype for 'xfs_forget_acl' 
[-Wmissing-prototypes]
      40 | xfs_forget_acl(
         | ^~~~~~~~~~~~~~
   drivers/usb/host/xhci.c:1274: warning: Function parameter or member 'desc' 
not described in 'xhci_get_endpoint_index'
   drivers/usb/host/xhci-mem.c:365: warning: Function parameter or member 
'xhci' not described in 'xhci_ring_alloc'
   drivers/usb/host/xhci-mem.c:365: warning: Function parameter or member 
'num_segs' not described in 'xhci_ring_alloc'
   drivers/usb/host/xhci-mem.c:365: warning: Function parameter or member 
'cycle_state' not described in 'xhci_ring_alloc'
   drivers/usb/host/xhci-mem.c:365: warning: Function parameter or member 
'type' not described in 'xhci_ring_alloc'
   drivers/usb/host/xhci-mem.c:365: warning: Function parameter or member 
'max_packet' not described in 'xhci_ring_alloc'
   drivers/usb/host/xhci-mem.c:365: warning: Function parameter or member 
'flags' not described in 'xhci_ring_alloc'
   drivers/target/target_core_pscsi.c: In function 'pscsi_complete_cmd':
   drivers/target/target_core_pscsi.c:624:5: warning: suggest braces around 
empty body in an 'if' statement [-Wempty-body]
     624 |     ; /* XXX: TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE */
         |     ^
   drivers/usb/host/xhci-debugfs.c: In function 'xhci_debugfs_regset':
   drivers/usb/host/xhci-debugfs.c:128:2: warning: function 
'xhci_debugfs_regset' might be a candidate for 'gnu_printf' format attribute 
[-Wsuggest-attribute=format]
     128 |  vsnprintf(rgs->name, sizeof(rgs->name), fmt, args);
         |  ^~~~~~~~~
   drivers/usb/host/fotg210-hcd.c: In function 'fotg210_run':
   drivers/usb/host/fotg210-hcd.c:5009:6: warning: variable 'hcc_params' set 
but not used [-Wunused-but-set-variable]
    5009 |  u32 hcc_params;
         |      ^~~~~~~~~~
   fs/xfs/xfs_symlink.c:26:1: warning: no previous prototype for 
'xfs_readlink_bmap_ilocked' [-Wmissing-prototypes]
      26 | xfs_readlink_bmap_ilocked(
         | ^~~~~~~~~~~~~~~~~~~~~~~~~
   fs/xfs/xfs_symlink.c:106:1: warning: no previous prototype for 
'xfs_readlink' [-Wmissing-prototypes]
     106 | xfs_readlink(
         | ^~~~~~~~~~~~
   fs/xfs/xfs_symlink.c:145:1: warning: no previous prototype for 'xfs_symlink' 
[-Wmissing-prototypes]
     145 | xfs_symlink(
         | ^~~~~~~~~~~
   fs/xfs/xfs_symlink.c:484:1: warning: no previous prototype for 
'xfs_inactive_symlink' [-Wmissing-prototypes]
     484 | xfs_inactive_symlink(
         | ^~~~~~~~~~~~~~~~~~~~
   fs/xfs/xfs_pnfs.c:27:1: warning: no previous prototype for 
'xfs_break_leased_layouts' [-Wmissing-prototypes]
      27 | xfs_break_leased_layouts(
         | ^~~~~~~~~~~~~~~~~~~~~~~~
   fs/xfs/xfs_pnfs.c:52:1: warning: no previous prototype for 'xfs_fs_get_uuid' 
[-Wmissing-prototypes]
      52 | xfs_fs_get_uuid(
         | ^~~~~~~~~~~~~~~
   fs/xfs/xfs_pnfs.c:77:1: warning: no previous prototype for 
'xfs_fs_map_blocks' [-Wmissing-prototypes]
      77 | xfs_fs_map_blocks(
         | ^~~~~~~~~~~~~~~~~
   fs/xfs/xfs_pnfs.c:226:1: warning: no previous prototype for 
'xfs_fs_commit_blocks' [-Wmissing-prototypes]
     226 | xfs_fs_commit_blocks(
         | ^~~~~~~~~~~~~~~~~~~~
   drivers/usb/host/fotg210-hcd.c:5565: warning: Function parameter or member 
'pdev' not described in 'fotg210_hcd_probe'
   drivers/usb/host/fotg210-hcd.c:5660: warning: Function parameter or member 
'pdev' not described in 'fotg210_hcd_remove'
   drivers/usb/host/fotg210-hcd.c:5660: warning: Excess function parameter 
'dev' description in 'fotg210_hcd_remove'
   fs/xfs/xfs_super.c: In function 'xfs_fs_statfs':
   fs/xfs/xfs_super.c:1130:28: warning: suggest braces around empty body in an 
'if' statement [-Wempty-body]
    1130 |   xfs_qm_statvfs(ip, statp);
         |                            ^
   fs/xfs/xfs_acl.c:111:1: warning: no previous prototype for 'xfs_get_acl' 
[-Wmissing-prototypes]
     111 | xfs_get_acl(struct inode *inode, int type)
         | ^~~~~~~~~~~
   fs/xfs/xfs_acl.c:160:1: warning: no previous prototype for '__xfs_set_acl' 
[-Wmissing-prototypes]
     160 | __xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
         | ^~~~~~~~~~~~~
   fs/xfs/xfs_acl.c:234:1: warning: no previous prototype for 'xfs_set_acl' 
[-Wmissing-prototypes]
     234 | xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
         | ^~~~~~~~~~~
   fs/xfs/xfs_trans_ail.c:793: warning: Function parameter or member 'ailp' not 
described in 'xfs_trans_ail_delete'
   fs/xfs/xfs_trans_ail.c:793: warning: Function parameter or member 'lip' not 
described in 'xfs_trans_ail_delete'
   fs/xfs/xfs_trans_ail.c:793: warning: Function parameter or member 
'shutdown_type' not described in 'xfs_trans_ail_delete'
   ERROR: "min_low_pfn" [drivers/hwtracing/intel_th/intel_th_msu.ko] undefined!
   ERROR: "min_low_pfn" [drivers/usb/misc/usbtest.ko] undefined!
   ERROR: "min_low_pfn" [drivers/usb/core/usbcore.ko] undefined!
   ERROR: "min_low_pfn" [drivers/dma/fsl-edma-common.ko] undefined!
>> ERROR: "min_low_pfn" [crypto/essiv.ko] undefined!
   ERROR: "min_low_pfn" [crypto/tcrypt.ko] undefined!
   ERROR: "min_low_pfn" [crypto/ccm.ko] undefined!
   make[1]: *** [Makefile:1302: modules] Error 2
   make[1]: Target '_all' not remade because of errors.
   make[2]: *** [scripts/Makefile.modpost:103: modules-modpost] Error 1
   make[2]: Target '__modpost' not remade because of errors.
--
   ERROR: "min_low_pfn" [drivers/hwtracing/intel_th/intel_th_msu.ko] undefined!
   ERROR: "min_low_pfn" [drivers/usb/misc/usbtest.ko] undefined!
   ERROR: "min_low_pfn" [drivers/usb/core/usbcore.ko] undefined!
   ERROR: "min_low_pfn" [drivers/dma/fsl-edma-common.ko] undefined!
>> ERROR: "min_low_pfn" [crypto/essiv.ko] undefined!
   ERROR: "min_low_pfn" [crypto/tcrypt.ko] undefined!
   ERROR: "min_low_pfn" [crypto/ccm.ko] undefined!
   make[2]: *** [scripts/Makefile.modpost:103: modules-modpost] Error 1
   make[2]: Target '__modpost' not remade because of errors.

---
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https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org

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