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Thu, 9 Apr 2026 16:00:45 +0200 (CEST) Message-ID: Subject: Re: [PATCH] media: cedrus: skip invalid H.264 reference list entries From: Nicolas Dufresne To: Pengpeng Hou , Maxime Ripard Cc: Paul Kocialkowski , Mauro Carvalho Chehab , Greg Kroah-Hartman , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , linux-media@vger.kernel.org, linux-staging@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org Date: Thu, 09 Apr 2026 10:00:44 -0400 In-Reply-To: <20260409223000.0-cedrus-h264-active-reply-pengpeng@iscas.ac.cn> References: <20260324080856.56787-1-pengpeng@iscas.ac.cn> <20260409223000.0-cedrus-h264-active-reply-pengpeng@iscas.ac.cn> Autocrypt: addr=nicolas.dufresne@collabora.com; prefer-encrypt=mutual; keydata=mDMEaCN2ixYJKwYBBAHaRw8BAQdAM0EHepTful3JOIzcPv6ekHOenE1u0vDG1gdHFrChD /e0J05pY29sYXMgRHVmcmVzbmUgPG5pY29sYXNAbmR1ZnJlc25lLmNhPoicBBMWCgBEAhsDBQsJCA cCAiICBhUKCQgLAgQWAgMBAh4HAheABQkJZfd1FiEE7w1SgRXEw8IaBG8S2UGUUSlgcvQFAmibrjo CGQEACgkQ2UGUUSlgcvQlQwD/RjpU1SZYcKG6pnfnQ8ivgtTkGDRUJ8gP3fK7+XUjRNIA/iXfhXMN abIWxO2oCXKf3TdD7aQ4070KO6zSxIcxgNQFtDFOaWNvbGFzIER1ZnJlc25lIDxuaWNvbGFzLmR1Z nJlc25lQGNvbGxhYm9yYS5jb20+iJkEExYKAEECGwMFCwkIBwICIgIGFQoJCAsCBBYCAwECHgcCF4 AWIQTvDVKBFcTDwhoEbxLZQZRRKWBy9AUCaCyyxgUJCWX3dQAKCRDZQZRRKWBy9ARJAP96pFmLffZ smBUpkyVBfFAf+zq6BJt769R0al3kHvUKdgD9G7KAHuioxD2v6SX7idpIazjzx8b8rfzwTWyOQWHC AAS0LU5pY29sYXMgRHVmcmVzbmUgPG5pY29sYXMuZHVmcmVzbmVAZ21haWwuY29tPoiZBBMWCgBBF iEE7w1SgRXEw8IaBG8S2UGUUSlgcvQFAmibrGYCGwMFCQll93UFCwkIBwICIgIGFQoJCAsCBBYCAw ECHgcCF4AACgkQ2UGUUSlgcvRObgD/YnQjfi4+L8f4fI7p1pPMTwRTcaRdy6aqkKEmKsCArzQBAK8 bRLv9QjuqsE6oQZra/RB4widZPvphs78H0P6NmpIJ Organization: Collabora Canada Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-5OVr67ceBJnzsgX5dAdF" User-Agent: Evolution 3.58.3 (3.58.3-1.fc43) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260409_070055_435344_E7B45AB2 X-CRM114-Status: GOOD ( 11.15 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org --=-5OVr67ceBJnzsgX5dAdF Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Le jeudi 09 avril 2026 =C3=A0 22:30 +0800, Pengpeng Hou a =C3=A9crit=C2=A0: > Hi Paul, >=20 > Thanks, that makes sense. >=20 > I agree Cedrus should not silently skip an invalid index in the active > portion of ref_pic_list0/ref_pic_list1. >=20 > I'll respin this to keep the check at the Cedrus use site rather than > cedrus_try_ctrl(), but return -EINVAL when one of the active reference > entries points past V4L2_H264_NUM_DPB_ENTRIES. Entries beyond > num_ref_idx_l0_active_minus1 / num_ref_idx_l1_active_minus1 will still > be ignored as before. Please, let the discussion continue before respinning. Nicolas >=20 > Thanks, > Pengpeng >=20 --=-5OVr67ceBJnzsgX5dAdF Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTvDVKBFcTDwhoEbxLZQZRRKWBy9AUCadexDAAKCRDZQZRRKWBy 9OpVAQCP3WR3RB5KJ7O/QZ7D8FigNAJs7B9yunh7U+RQR3hX9AEA+EjzVzLfQMAu cRpZtv69oZ3RMZw21gi99TaCU4LTiwA= =YIxt -----END PGP SIGNATURE----- --=-5OVr67ceBJnzsgX5dAdF--