[BUG] allmodconfig build error in next-20240108

Paul E. McKenney
2024-01-08T21:33:37Z

Hello!

Recent -next trees get the following build error for allmodconfig builds:

------------------------------------------------------------------------

drivers/gpu/drm/xe/xe_gt_pagefault.c: In function ‘xe_guc_pagefault_handler’:
./include/linux/fortify-string.h:57:33: error: writing 16 bytes into a region of  size 0 [-Werror=stringop-overflow=]
57 | #define __underlying_memcpy     __builtin_memcpy
|                                 ^
./include/linux/fortify-string.h:644:9: note: in expansion of macro ‘__underlying_memcpy’
644 |         __underlying_##op(p, q, __fortify_size); \
|         ^~~~~~~~~~~~~
./include/linux/fortify-string.h:689:26: note: in expansion of macro ‘__fortify_memcpy_chk’
689 | #define memcpy(p, q, s)  __fortify_memcpy_chk(p, q, s, \
|                          ^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/xe/xe_gt_pagefault.c:340:17: note: in expansion of macro ‘memcpy’
340 |                 memcpy(pf_queue->data + pf_queue->tail, msg, len * sizeof(u32));
|                 ^~~~~~
In file included from drivers/gpu/drm/xe/xe_device_types.h:17,
from drivers/gpu/drm/xe/xe_vm_types.h:16,
from drivers/gpu/drm/xe/xe_bo.h:13,
from drivers/gpu/drm/xe/xe_gt_pagefault.c:16:
drivers/gpu/drm/xe/xe_gt_types.h:102:25: note: at offset [1144, 265324] into destination object ‘tile’ of size 8
102 |         struct xe_tile *tile;
|

------------------------------------------------------------------------

Thanx, Paul