From nobody Thu Dec 18 18:04:21 2025 Received: from mail-yw1-f202.google.com (mail-yw1-f202.google.com [209.85.128.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3C06B194A61 for ; Wed, 26 Jun 2024 23:04:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719443076; cv=none; b=DQSeUHcLwDiRWClHVXKccbQbz4dcEyIdm/baoFxWsP04HrGQ1shUbm3+iZr1syyZwZmoeijiCPwgYKLjkMS5bXW+NYRzLW/JUIOGiG/0Aed8W3Lr4Y8btM76szptU1thfVKSD38BFO5XCIJksHsH/fruGy450FBinJxuRF/9c7k= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719443076; c=relaxed/simple; bh=vKCPSZCxsriB7WThJFHjvVytk0B8CH0/B2lctEhKZJI=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=PCQ5ajjFVovYSZndtCOnHUkDohpRBKCVQNfm9RYMP32l3842ia0mPB+gFOFstWxWe2Y5wWa0xYab8mub/hF+u1g8lnGKAzOOugKrL0hx0ZDs1j9h+s1UgrBURuOH95L5/iH/NmAxIvXLcvHQTnhctDQrOmya0gYmUuCW7F9ScRw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--ipylypiv.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=f0NnXEZ9; arc=none smtp.client-ip=209.85.128.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--ipylypiv.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="f0NnXEZ9" Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-62fb4a1f7bfso173887227b3.3 for ; Wed, 26 Jun 2024 16:04:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1719443074; x=1720047874; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=PEyKI1QsiIJEewnF527ltuQV4oeBpkyWMn9QtWCUb2g=; b=f0NnXEZ9Kk4PBi87AmOOr4ZP9E2uGHCVvpqZazMUUTnAs56AaHJtI/TOfFi+tLtBmJ hH1+RGzbJecDuDK8XCgF0jd1BHxkK2W4/DW5Xx8Y1hGbIlx6/cSpp7Wq9aJ0Qag1HtUj xvjC8sOa5CdpkYChSCUZSQztrLTia3kk6ueGISxEhtSfI540IwHJ2kwGpxNOZ9MO35jZ zCWGT6Kl1AJ6JyIfjmIBdqolHdxz8vwze/xfFsG028AMF9aTVv8416EhTuzTLbliM5QS bGmdjgHNPR+F4a5iYJxmEC0DqqHZrzCb3umUBCfDT6X0imzoE1Zh6a2GCGQOvZAYmNeQ JxMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719443074; x=1720047874; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=PEyKI1QsiIJEewnF527ltuQV4oeBpkyWMn9QtWCUb2g=; b=jmu8boNG1IvqIOx9jnuVtjC75oP8aOWKcwkE1ugbnOmcvzmmwCXQmZmwMptlr6Cteo 0VVT6eaXKWcn4AdoZPO1F8ako1tqCxOeT5M5xe9Y/cGuO/NO7L/DSVEIkeFR+jL/7eji OVwdV8HtK6gRJyBSWmDpa8awiEbfVWxjrD1sLBsf0aIkMT159rEpMeKQin0b+bjqjq1r QRoPi9uYYxPbDuWozPkRf92WzuVgD5rs8ao7TLqfp25zcDYXmmIStJVmmxV6lr48IAZ4 C9TVjN2BCWBLTkyin6e+GOjXhOhgkDwXg6VgaDCDBwIdn89lms4j2SGyPMFIf2FDE8Fi P46w== X-Forwarded-Encrypted: i=1; AJvYcCXZPAbIIwRShKU/5mHWzeWwiF64JZfGjsUs+FoMwWBf9hiFeru1YiACqnnzooxwxB6AXqdAD4TSr2anov1TxwuAVcNfEUZaPRt8utBF X-Gm-Message-State: AOJu0YzX9+HOVbuM5X15yU0VNdLAFe+fpMGkMlNm6T+oYS5QHpT9xSQp jfBLV82UtPS5TE0bna8fyQKo6WVJ4Iku3hMMnwFxl5QoZ7pYkoJNXTeTfNLqPK6V9z7IJi0U1Ms /fjt8fXQNVA== X-Google-Smtp-Source: AGHT+IHEjGoOj0rKBY90tBQ+URsGB4VTurQ8pFXkmw/P+KxoNfpIx64+6no67l8qdUYDXNV6XjzwXAXXQvy3Bw== X-Received: from ip.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:57f3]) (user=ipylypiv job=sendgmr) by 2002:a05:690c:fc8:b0:648:2a9d:1a63 with SMTP id 00721157ae682-6482a9d24bfmr2023537b3.7.1719443074353; Wed, 26 Jun 2024 16:04:34 -0700 (PDT) Date: Wed, 26 Jun 2024 23:04:11 +0000 In-Reply-To: <20240626230411.3471543-1-ipylypiv@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240626230411.3471543-1-ipylypiv@google.com> X-Mailer: git-send-email 2.45.2.803.g4e1b14247a-goog Message-ID: <20240626230411.3471543-7-ipylypiv@google.com> Subject: [PATCH v3 6/6] ata: libata-scsi: Check ATA_QCFLAG_RTF_FILLED before using result_tf From: Igor Pylypiv To: Damien Le Moal , Niklas Cassel Cc: Tejun Heo , Hannes Reinecke , linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, Igor Pylypiv Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" qc->result_tf contents are only valid when the ATA_QCFLAG_RTF_FILLED flag is set. The ATA_QCFLAG_RTF_FILLED flag should be always set for commands that failed or for commands that have the ATA_QCFLAG_RESULT_TF flag set. Signed-off-by: Igor Pylypiv Reviewed-by: Damien Le Moal Reviewed-by: Hannes Reinecke --- drivers/ata/libata-scsi.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 02af4d5d5799..d5874d4b9253 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -242,10 +242,16 @@ void ata_scsi_set_sense_information(struct ata_device= *dev, */ static void ata_scsi_set_passthru_sense_fields(struct ata_queued_cmd *qc) { + struct ata_device *dev =3D qc->dev; struct scsi_cmnd *cmd =3D qc->scsicmd; struct ata_taskfile *tf =3D &qc->result_tf; unsigned char *sb =3D cmd->sense_buffer; =20 + if (!(qc->flags & ATA_QCFLAG_RTF_FILLED)) { + ata_dev_dbg(dev, "Missing RTF: cannot set ATA PT sense fields.\n"); + return; + } + if ((sb[0] & 0x7f) >=3D 0x72) { unsigned char *desc; u8 len; @@ -923,10 +929,16 @@ static void ata_to_sense_error(u8 drv_stat, u8 drv_er= r, u8 *sk, u8 *asc, */ static void ata_gen_passthru_sense(struct ata_queued_cmd *qc) { + struct ata_device *dev =3D qc->dev; struct scsi_cmnd *cmd =3D qc->scsicmd; struct ata_taskfile *tf =3D &qc->result_tf; u8 sense_key, asc, ascq; =20 + if (!(qc->flags & ATA_QCFLAG_RTF_FILLED)) { + ata_dev_dbg(dev, "Missing RTF: cannot generate ATA PT sense data.\n"); + return; + } + /* * Use ata_to_sense_error() to map status register bits * onto sense key, asc & ascq. @@ -970,6 +982,12 @@ static void ata_gen_ata_sense(struct ata_queued_cmd *q= c) ata_scsi_set_sense(dev, cmd, NOT_READY, 0x04, 0x21); return; } + + if (!(qc->flags & ATA_QCFLAG_RTF_FILLED)) { + ata_dev_dbg(dev, "Missing RTF: cannot generate sense data.\n"); + return; + } + /* Use ata_to_sense_error() to map status register bits * onto sense key, asc & ascq. */ --=20 2.45.2.803.g4e1b14247a-goog