linux-next: build failure after merge of the tip tree

Stephen Rothwell
2022-12-13T01:41:15Z

[-- Attachment #1: Type: text/plain, Size: 2129 bytes --]

Hi all,

After merging the tip tree, today's linux-next build (x86_64 allmodconfig)
failed like this:

In file included from include/linux/uaccess.h:11,
from include/linux/sched/task.h:11,
from include/linux/sched/signal.h:9,
from include/linux/rcuwait.h:6,
from include/linux/percpu-rwsem.h:7,
from include/linux/fs.h:33,
from include/linux/highmem.h:5,
from include/linux/bvec.h:10,
from include/linux/blk_types.h:10,
from include/linux/blkdev.h:9,
from drivers/scsi/scsi_ioctl.c:9:
drivers/scsi/scsi_ioctl.c: In function 'sg_scsi_ioctl':
arch/x86/include/asm/uaccess.h:46:9: error: cast specifies array type
46 | (__force __typeof__(ptr))__ptrval; \
| ^
arch/x86/include/asm/uaccess.h:107:38: note: in definition of macro '__typefits'
107 | __builtin_choose_expr(sizeof(x)<=sizeof(type),(unsigned type)0,not)
| ^
arch/x86/include/asm/uaccess.h:130:18: note: in expansion of macro '__inttype'
130 | register __inttype(*(ptr)) __val_gu asm("%"_ASM_DX); \
| ^~~~~~~~~
arch/x86/include/asm/uaccess.h:162:9: note: in expansion of macro 'do_get_user_call'
162 | do_get_user_call(get_user,x,untagged_ptr(current->mm, ptr)); \
| ^~~~~~~~~~~~~~~~
arch/x86/include/asm/uaccess.h:162:37: note: in expansion of macro 'untagged_ptr'
162 | do_get_user_call(get_user,x,untagged_ptr(current->mm, ptr)); \
| ^~~~~~~~~~~~
drivers/scsi/scsi_ioctl.c:522:13: note: in expansion of macro 'get_user'
522 | if (get_user(opcode, sic->data))
| ^~~~~~~~

Caused by commit

ce66a02538f3 ("x86/mm: Fix sparse warnings in untagged_ptr()")

(the scsi code above has not changed since at least February ...)

I have reverted that commit for today.

--
Cheers,
Stephen Rothwell

[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]