From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 15D8E3DDDDF for ; Tue, 26 May 2026 11:11:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779793899; cv=none; b=faaAucJ6zDruD1YtdDDXL29xlE/9YmX/Pu30sPi0qCUBje+2EtxKcECefsw44n/4476T1kzawe/MuRCdKT/DaykiGJ7OdPbGqt0pVY03eYlPISBI/PuUTH1DuJaZN7l1lARRyYDk6+1VF4U499jEQdV4vpaIrRaHqxPd1k/6sWg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779793899; c=relaxed/simple; bh=xJwkAFzBCgVE2LEdHMFAQiZLbcIInQtlHCiLCIhnIZ0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=nD48bCk4vcfyh8Q9oh+cBra5/WkWzT6RqQNuqVIuuVdTLpFK1TitI0gYIYMt/B14NTqDEjPET7Em7QPqENTDbL0geF5MxyUfEjQSw6av+ag60moT/cQjwxBDxGpDwAbuSVAWOMx+z777EEd/z1wCyD46AsKQGn/G0ztbW7BxZ34= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=ieXacd1k; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=HDj2EIaH; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="ieXacd1k"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="HDj2EIaH" Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 64Q7wNXj1908551 for ; Tue, 26 May 2026 11:11:37 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=qcppdkim1; bh=WnPeFnYm50V ptjiqnHaSpsB7Y9ad0zWN9mmwwejDdiY=; b=ieXacd1kjQV1C42FyHkFDsqQtEn kACdYNlJ11If5SV3Y/M4Dgo7reYLEDmuzrOHpOr8mmkJagPuU9Aq77QCD6t9NUcx OSmhMJKJ1CKi5nd6oyhuIUXgbLG074OF7LypFU9R1tfGSpUN+Iq986bMmRKup0pb dQtngw6iS0DpDoM07RzyjCB4dBcbAehKxFwCtNobXxwNGkrXjz5zlEegf1hG4IRu 4c/Go+4HYcxY2YnKsUrCg4iFBxm2oSMamiZLH5IEEstSNOWEva3sBRAvjjhqC4Sp YADyAD4PRqD5qb0QZL+noTk5zmS/otzW9K5pogRrzgKkMxZtm6+Kcl9qkcg== Received: from mail-pj1-f69.google.com (mail-pj1-f69.google.com [209.85.216.69]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4eckmaccjp-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Tue, 26 May 2026 11:11:37 +0000 (GMT) Received: by mail-pj1-f69.google.com with SMTP id 98e67ed59e1d1-366ded5ab5fso20344186a91.0 for ; Tue, 26 May 2026 04:11:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1779793896; x=1780398696; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=WnPeFnYm50VptjiqnHaSpsB7Y9ad0zWN9mmwwejDdiY=; b=HDj2EIaHlU8rFma5A2F2kymcYgVHlLA35BcT0ATNZI7qRor/EhkZ3JDn4Lr2C77F1P sfCzszzfyxviLE40d+tT1lnxsbCtzI8EMmn4y+NSRv/Se0fxi2RouDLFSVGAlFGsDg9Z 4apEQTZHZd2+OaFYTcg0QYkJpzqxhynUtXaOTIg5SHK0xo6C0nupAzDM2NRN+xScV9Ix DwbmzpzwEBINJvjrINrtULsKaOqMtKV4r66KIlWLNgZVgwEdPeQmUatJzdkiCHUqg1Ef AMf/8XjkGa2f8ewA2lLry68NSxtSw+uF6hK7H98S99et4yPu/6jKo6bo6YLDpr/VTb6a +Mkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779793896; x=1780398696; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=WnPeFnYm50VptjiqnHaSpsB7Y9ad0zWN9mmwwejDdiY=; b=nmTs1oWkbCBkLGeiM6MWNoojR6HN/lf48x97GR8+cKV3yVfLVGoyEdEhf0sPhuP/5t ylD4rmxgpEIW1QX/Z5jmiRVJW3EpXgek76Jy+f0VWsOeD+EwUkkJr9YGKzdJxgAl5vgT 2C7RYEaSNeRajMyabJO9qZwiBAwQenCxrrzPHVZeJnwJi/WxsgE9I7GhWlb2Kpq3floV zbfp4xh8f7mFS97v6JPB0y55Ce5lzflyYOcM56qrlN1TN3EFjyPevhGGh+BH19uAf+1t XSZRVqXBpsQNj3LFnmwd0e6t7HzsAOjMJSfKsSgeiuZ+/OiiRHSa7e0+zvmnHRci+yjp p2rw== X-Forwarded-Encrypted: i=1; AFNElJ9ZuSDx5yGqTYZx6vVWWnyETTCaUX9V3SvW2Sw5OulSSF0UWfPYRUNgFvrcaBuvg1QnJL4jXuueFJ+TL2s=@vger.kernel.org X-Gm-Message-State: AOJu0YwBkuDj8lNUAlREAksc4rLH5fLcrr/x/56ppdwf+LB2wJ35T24d chZfr/1ZW3L2EFgV/FsDuv7iwn8l/3I6Y2MYG5MsB1Uo5Rne/Heyd+ZswXcY1f+xGGtpInv1/3f w8VvOlFMbBCEEPpU8ue2VuhuWSPaF3tW8ceFxdHu/KtQ+Ov0Y6WoJF4gOEQTpqd1ks+Q= X-Gm-Gg: Acq92OEnqitAoEcUdrr0flzjOG7ownEjCpQf5tYEAe/vkmExab27vMeIaWMGAmwZ2gU Wez9FjqVIs+VbdexAy9Ip5oXka0vQV7U0/mejSAAjpi2J1OkxwW22YT9+H/CD8NtYlqxKXEumO7 fqFjo499rJkQKVl9w8HUghbga0Ulayvkx6ZqF1wH6FQEh5FoI5l6yIX+5UwB7afFaaNqV9oFbxK cgPG380lGjvq8+VtnzyIFToF0Vfo4BKwuyh1D29rGEnuafvyt+4giJuGcAZW91PfHk1y1NlfgSR 1prM5XBZOAvaemuIM+eMCREApZjpA7PFtmtTpZGvLpyza1rTYYue2pTfs0Etz5wqdnwU1p8qml4 kMxeiGOgfB5ubaIXO5M2CEolmcDvrT1N/U25icmfkxABgjnrtvJzSrSwDhJqjJKTh1Q866KXzAL THTYaGO8mcda14V0EbNQ== X-Received: by 2002:a17:90a:c106:b0:369:7003:4e2d with SMTP id 98e67ed59e1d1-36a676090bemr17128810a91.17.1779793896389; Tue, 26 May 2026 04:11:36 -0700 (PDT) X-Received: by 2002:a17:90a:c106:b0:369:7003:4e2d with SMTP id 98e67ed59e1d1-36a676090bemr17128775a91.17.1779793895824; Tue, 26 May 2026 04:11:35 -0700 (PDT) Received: from QCOM-SocCW5bzXR.qualcomm.com (tpe-colo-wan-fw-bordernet.qualcomm.com. [103.229.16.4]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-36a72c4ce6bsm12104253a91.11.2026.05.26.04.11.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 May 2026 04:11:35 -0700 (PDT) From: Jianping Li To: srini@kernel.org, amahesh@qti.qualcomm.com, arnd@arndb.de, gregkh@linuxfoundation.org, abelvesa@kernel.org, jorge.ramirez@oss.qualcomm.com Cc: Ekansh Gupta , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, quic_chennak@quicinc.com, stable@kernel.org, Jianping Li Subject: [PATCH v6 1/5] misc: fastrpc: Fix initial memory allocation for Audio PD memory pool Date: Tue, 26 May 2026 19:11:20 +0800 Message-Id: <20260526111124.515-2-jianping.li@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260526111124.515-1-jianping.li@oss.qualcomm.com> References: <20260526111124.515-1-jianping.li@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: 8bit X-Authority-Analysis: v=2.4 cv=cL3QdFeN c=1 sm=1 tr=0 ts=6a157fe9 cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=VwQbUJbxAAAA:8 a=Rm9GPb-2FwNFOyaWfJMA:9 a=rl5im9kqc5Lf4LNbBjHf:22 X-Proofpoint-ORIG-GUID: hn7xMfAQ5T1P3FubcBCZvbNpaHMA0xpe X-Proofpoint-GUID: hn7xMfAQ5T1P3FubcBCZvbNpaHMA0xpe X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTI2MDA5NyBTYWx0ZWRfXyd+Uk0nnyHuu WdYQ722i0MHST2Kjfjr8Losx3F8M/Qi+qpEV1+639m11xLqEplb4PRUqp0AZjWEx9rrPscDevfg rsc8ffFULdpiHz3R5uzOQhTMUnUNCNPGstF5CGnI4TCJg08T6ZAXLJUBtXnAz8AtEpR+XMbe/qo VoNeh338s+qfu6dLBLVXuFPyDNGtaBGRo4yy3dSp/TTo5DUxeHMy+ZY2+lBG6hBH85j5DJY9zwS NF8xfMgOiEEJmXkU+QDuKfuqsVUFTJJZLZPntA40PQRwm+Xh3EFMkLMZnoD7LWdM5jZ3eq2dTpQ 0OIwNo7g7r7hy4Hh+JE/WOYy4OdIgoLmm1t7FBGGq0FfC+hCpSjmn2ghhHW58cLhx9fD6pu96ev bqi5dvisci3ZLoJ3Tegb+D1sbKUglUMOfMjUSi/4DzeZgZHRL1YW7Jq8buMsnRGjh4FHEJ6uRFp kSQeUy8WBRnp3rUWV1Q== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-05-26_02,2026-05-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 bulkscore=0 priorityscore=1501 phishscore=0 adultscore=0 lowpriorityscore=0 spamscore=0 suspectscore=0 clxscore=1015 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605130000 definitions=main-2605260097 From: Ekansh Gupta The initial buffer allocated for the Audio PD memory pool is never added to the pool because pageslen is set to 0. As a result, the buffer is not registered with Audio PD and is never used, causing a memory leak. Audio PD immediately falls back to allocating memory from the remote heap since the pool starts out empty. Fix this by setting pageslen to 1 so that the initially allocated buffer is correctly registered and becomes part of the Audio PD memory pool. Fixes: 0871561055e66 ("misc: fastrpc: Add support for audiopd") Cc: stable@kernel.org Signed-off-by: Ekansh Gupta Signed-off-by: Jianping Li --- drivers/misc/fastrpc.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c index 5524354f3ccc..80a636962357 100644 --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -1373,7 +1373,9 @@ static int fastrpc_init_create_static_process(struct fastrpc_user *fl, err = PTR_ERR(name); goto err; } - + inbuf.client_id = fl->client_id; + inbuf.namelen = init.namelen; + inbuf.pageslen = 0; if (!fl->cctx->remote_heap) { err = fastrpc_remote_heap_alloc(fl, fl->sctx->dev, init.memlen, &fl->cctx->remote_heap); @@ -1396,12 +1398,10 @@ static int fastrpc_init_create_static_process(struct fastrpc_user *fl, goto err_map; } scm_done = true; + inbuf.pageslen = 1; } } - inbuf.client_id = fl->client_id; - inbuf.namelen = init.namelen; - inbuf.pageslen = 0; fl->pd = USER_PD; args[0].ptr = (u64)(uintptr_t)&inbuf; -- 2.43.0