Received-SPF: pass (google.com: domain of linux-kernel+bounces-54297-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) client-ip=139.178.88.99;
Date: Tue, 6 Feb 2024 15:28:50 +1100
From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Christian =?UTF-8?B?S8O2bmln?= <christian.koenig@amd.com>, Somalapuram
 Amaranath <Amaranath.Somalapuram@amd.com>, Intel Graphics
 <intel-gfx@lists.freedesktop.org>, DRI <dri-devel@lists.freedesktop.org>,
 Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Linux Next
 Mailing List <linux-next@vger.kernel.org>
Subject: linux-next: build failure after merge of the drm-misc tree
Message-ID: <20240206152850.333f620d@canb.auug.org.au>
Precedence: bulk
MIME-Version: 1.0
Content-Type: multipart/signed; boundary="Sig_/3Y6MoHeU/vcVg9/l.X7hCZH";
 protocol="application/pgp-signature"; micalg=pgp-sha256

--Sig_/3Y6MoHeU/vcVg9/l.X7hCZH
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: quoted-printable

Hi all,

After merging the drm-misc tree, today's linux-next build (i386 defconfig)
failed like this:

In function 'i915_ttm_placement_from_obj',
    inlined from 'i915_ttm_get_pages' at drivers/gpu/drm/i915/gem/i915_gem_=
ttm.c:847:2:
drivers/gpu/drm/i915/gem/i915_gem_ttm.c:165:18: error: 'places[0].flags' is=
 used uninitialized [-Werror=3Duninitialized]
  165 |         places[0].flags |=3D TTM_PL_FLAG_DESIRED;
      |         ~~~~~~~~~^~~~~~
drivers/gpu/drm/i915/gem/i915_gem_ttm.c: In function 'i915_ttm_get_pages':
drivers/gpu/drm/i915/gem/i915_gem_ttm.c:837:26: note: 'places' declared here
  837 |         struct ttm_place places[I915_TTM_MAX_PLACEMENTS + 1];
      |                          ^~~~~~

Caused by commit

  a78a8da51b36 ("drm/ttm: replace busy placement with flags v6")

I applied the following hack for today:

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Tue, 6 Feb 2024 15:17:54 +1100
Subject: [PATCH] drm/ttm: initialise places

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915=
/gem/i915_gem_ttm.c
index 80c6cafc8887..34e699e67c25 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
@@ -834,7 +834,7 @@ static int __i915_ttm_get_pages(struct drm_i915_gem_obj=
ect *obj,
=20
 static int i915_ttm_get_pages(struct drm_i915_gem_object *obj)
 {
-	struct ttm_place places[I915_TTM_MAX_PLACEMENTS + 1];
+	struct ttm_place places[I915_TTM_MAX_PLACEMENTS + 1] =3D {};
 	struct ttm_placement placement;
=20
 	/* restricted by sg_alloc_table */
--=20
2.43.0

--=20
Cheers,
Stephen Rothwell

--Sig_/3Y6MoHeU/vcVg9/l.X7hCZH
Content-Type: application/pgp-signature
Content-Description: OpenPGP digital signature

-----BEGIN PGP SIGNATURE-----

iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAmXBtYIACgkQAVBC80lX
0GxSHwf7B3D9Ebe7H+C1S84E/g/hlQwxf+jo8X+m4cEWbMKvzTuloTlIBADoL93W
E4SolMFUwtAQtuAPTJIfJPfCwFGxPBUbqpY3cTzA6rBM6XHvLMjQLPubfeZoX6oB
u0YtbT36l7g+26YUvQdz6FtFlA+X5A+bpVnX0KP1+sw6yhTNqRZEFjxoEvIeIMt+
EUOkKoSO6lcokZTcWVWQxiBDPGHFXW+jyzj9JcEI0i0FbcEmvYbUz25NXDSeU6PJ
3xAxI06Fe2ONdboipZyjWMnZNUO3iy24Wsp4RQ3eYLoL5QWYP8tgrTesTTaA8eyY
WSqEqGwjt8cAeuR5aDcEoeSW116FbA==
=rfsv
-----END PGP SIGNATURE-----

--Sig_/3Y6MoHeU/vcVg9/l.X7hCZH--