linux-kernel - Broken xarray testing in v6.9-rc1

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Date: Tue, 23 Apr 2024 10:18:36 -0400
From: "Liam R. Howlett" <Liam.Howlett@...cle.com>
To: mcgrof@...nel.org
Cc: linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, hare@...e.com, p.raghav@...sung.com,
        da.gomez@...sung.com, djwong@...nel.org, david@...morbit.com,
        mcgrof@...nel.org, willy@...radead.org, akpm@...ux-foundation.org
Subject: Broken xarray testing in v6.9-rc1

Hello,

Testing of the xarray using the radix tree test suite is currently
broken in v6.9-rc1 and beyond.  A bisect resulted in your commit failing
to build:

a60cc288a1a2604bd86d3df129f269887018c3cb is the first bad commit
commit a60cc288a1a2604bd86d3df129f269887018c3cb
Author: Luis Chamberlain <mcgrof@...nel.org>

..

Building in the test suite now fails in linux/tools/testing/radix-tree:

{bisect/bad(bisect)//radix-tree} $ make
cc  -O2 -g -Wall -I. -I../../include -I../../../lib -g -Og -Wall -D_LGPL_SOURCE -fsanitize=address -fsanitize=undefined   -c -o xarray.o xarray.c
In file included from xarray.c:18:
./../../lib/test_xarray.c: In function ‘test_get_entry’:
./../../lib/test_xarray.c:750:17: warning: implicit declaration of function ‘schedule’ [-Wimplicit-function-declaration]
  750 |                 schedule();
      |                 ^~~~~~~~
./../../lib/test_xarray.c: In function ‘check_xa_multi_store_adv’:
./../../lib/test_xarray.c:767:24: error: ‘PAGE_SHIFT’ undeclared (first use in this function)
  767 |         index = pos >> PAGE_SHIFT;
      |                        ^~~~~~~~~~
./../../lib/test_xarray.c:767:24: note: each undeclared identifier is reported only once for each function it appears in
make: *** [<builtin>: xarray.o] Error 1

Can you please have a look?

Thanks,
Liam