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Wed, 01 Apr 2026 22:49:35 -0700 (PDT) Received: from hu-ekangupt-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82cf9b5fb22sm2167747b3a.26.2026.04.01.22.49.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Apr 2026 22:49:34 -0700 (PDT) From: Ekansh Gupta To: srini@kernel.org, linux-arm-msm@vger.kernel.org Cc: gregkh@linuxfoundation.org, quic_bkumar@quicinc.com, linux-kernel@vger.kernel.org, quic_chennak@quicinc.com, dri-devel@lists.freedesktop.org, arnd@arndb.de, dmitry.baryshkov@oss.qualcomm.com, andersson@kernel.org, konrad.dybcio@oss.qualcomm.com Subject: [PATCH v7 1/4] misc: fastrpc: Move fdlist to invoke context structure Date: Thu, 2 Apr 2026 11:19:20 +0530 Message-Id: <20260402054923.3061925-2-ekansh.gupta@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260402054923.3061925-1-ekansh.gupta@oss.qualcomm.com> References: <20260402054923.3061925-1-ekansh.gupta@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDAyMDA0OCBTYWx0ZWRfX1rtHeDAlkoEA ej7CgdBteoSiZGqiy5T9iqKNUQgqoGHyggzCaeAQp2iqoBU6SfidJVmWWGTK92AQGZZ2ntZ3+Pt 3Hlb8ciCaDGGn4NCbz3mPeQ83/EyR+zV+FGyqjI2T6+tD62ShjAno+nd9muYqOfZMvir/UVcjUf b9VFn21d6XbYydvmzYABiOWQU5od+KhQiEy3akE7MCe529qDdJOrqRDhcBYhNbwXt33SdtJa7jc b/3DLKm09Ae5jUqf8Z5xyqGJ/WjLCIxzLs2/jmYVb/5LLLmqYuGUWg3xAMJ9Kn/a3EHbbNrjVar Ev+VVhGKCy7dhytoxJ5Y1b0VSvuWTiyXXtPj6wwE3HEs5J4JeIu82DWknzlY+r3e0tfcK6g3bn5 0kfkOjeRW4BiOVX4t5GwR9jPGZWi23Pxa14RygkUuxnENVzTiQ1Mw+69wx8/ldGWJE63XynHIxX VRnVYeCzBLHypiI2iUA== X-Authority-Analysis: v=2.4 cv=DJSCIiNb c=1 sm=1 tr=0 ts=69ce0370 cx=c_pps a=m5Vt/hrsBiPMCU0y4gIsQw==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=EUspDBNiAAAA:8 a=IPuuj3Sbi4WKP8RQR18A:9 a=IoOABgeZipijB_acs4fv:22 X-Proofpoint-ORIG-GUID: 0QroVwMQZeZPoTkoDpClHTC4ZcqMAhpD X-Proofpoint-GUID: 0QroVwMQZeZPoTkoDpClHTC4ZcqMAhpD X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-02_01,2026-04-01_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 suspectscore=0 bulkscore=0 clxscore=1015 malwarescore=0 adultscore=0 impostorscore=0 spamscore=0 lowpriorityscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2604020048 Content-Type: text/plain; charset="utf-8" The fdlist is currently part of the meta buffer which is set during fastrpc_get_args(), this fdlist is getting recalculated during fastrpc_put_args(). Move fdlist to the invoke context structure to improve maintainability and reduce redundancy. This centralizes its handling and simplifies meta buffer preparation and reading logic. Signed-off-by: Ekansh Gupta --- drivers/misc/fastrpc.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c index 47356a5d5804..11f4ae749e51 100644 --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -233,6 +233,7 @@ struct fastrpc_invoke_ctx { int pid; int client_id; u32 sc; + u64 *fdlist; u32 *crc; u64 ctxid; u64 msg_sz; @@ -1016,6 +1017,7 @@ static int fastrpc_get_args(u32 kernel, struct fastrp= c_invoke_ctx *ctx) rpra =3D ctx->buf->virt; list =3D fastrpc_invoke_buf_start(rpra, ctx->nscalars); pages =3D fastrpc_phy_page_start(list, ctx->nscalars); + ctx->fdlist =3D (u64 *)(pages + ctx->nscalars); args =3D (uintptr_t)ctx->buf->virt + metalen; rlen =3D pkt_size - metalen; ctx->rpra =3D rpra; @@ -1118,18 +1120,11 @@ static int fastrpc_put_args(struct fastrpc_invoke_c= tx *ctx, union fastrpc_remote_arg *rpra =3D ctx->rpra; struct fastrpc_user *fl =3D ctx->fl; struct fastrpc_map *mmap =3D NULL; - struct fastrpc_invoke_buf *list; - struct fastrpc_phy_page *pages; - u64 *fdlist; - int i, inbufs, outbufs, handles; + u64 *fdlist =3D ctx->fdlist; + int i, inbufs; int ret =3D 0; =20 inbufs =3D REMOTE_SCALARS_INBUFS(ctx->sc); - outbufs =3D REMOTE_SCALARS_OUTBUFS(ctx->sc); - handles =3D REMOTE_SCALARS_INHANDLES(ctx->sc) + REMOTE_SCALARS_OUTHANDLES= (ctx->sc); - list =3D fastrpc_invoke_buf_start(rpra, ctx->nscalars); - pages =3D fastrpc_phy_page_start(list, ctx->nscalars); - fdlist =3D (uint64_t *)(pages + inbufs + outbufs + handles); =20 for (i =3D inbufs; i < ctx->nbufs; ++i) { if (!ctx->maps[i]) { --=20 2.34.1