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Date: Mon, 8 Jan 2024 13:33:36 -0800
From: "Paul E. McKenney" <paulmck@kernel.org>
To: lucas.dimarchi@intel.com, ogabbay@kernel.org,
	thomas.hellstrom@linux.intel.com
Cc: linux-kernel@vger.kernel.org, sfr@canb.auug.org.au,
	intel-xe@lists.freedesktop.org
Subject: [BUG] allmodconfig build error in next-20240108
Message-ID: <45ad1d0f-a10f-483e-848a-76a30252edbe@paulmck-laptop>
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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