From patchwork Tue Mar 22 04:20:09 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jarkko Sakkinen X-Patchwork-Id: 600385 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.sourceforge.net (lists.sourceforge.net [216.34.181.88]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3qTfd83yZ1z9ryQ for ; Tue, 22 Mar 2016 15:20:44 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=sfs-ml-4.v29.ch3.sourceforge.com) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1aiDo9-0000TJ-7C; Tue, 22 Mar 2016 04:20:41 +0000 Received: from sog-mx-2.v43.ch3.sourceforge.com ([172.29.43.192] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1aiDo8-0000TC-83 for tpmdd-devel@lists.sourceforge.net; Tue, 22 Mar 2016 04:20:40 +0000 X-ACL-Warn: Received: from mga11.intel.com ([192.55.52.93]) by sog-mx-2.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1aiDo6-0008B7-Vi for tpmdd-devel@lists.sourceforge.net; Tue, 22 Mar 2016 04:20:40 +0000 Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga102.fm.intel.com with ESMTP; 21 Mar 2016 21:20:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,375,1455004800"; d="scan'208";a="70840911" Received: from tvenet-mobl.ger.corp.intel.com (HELO localhost) ([10.252.6.104]) by fmsmga004.fm.intel.com with ESMTP; 21 Mar 2016 21:20:31 -0700 From: Jarkko Sakkinen To: Peter Huewe Date: Tue, 22 Mar 2016 06:20:09 +0200 Message-Id: <1458620409-15603-1-git-send-email-jarkko.sakkinen@linux.intel.com> X-Mailer: git-send-email 2.7.3 X-Spam-Score: -0.0 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Headers-End: 1aiDo6-0008B7-Vi Cc: tpmdd-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: [tpmdd-devel] [PATCH] tpm: drop int_queue from tpm_vendor_specific X-BeenThere: tpmdd-devel@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: Tpm Device Driver maintainance List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: tpmdd-devel-bounces@lists.sourceforge.net Drop field int_queue from tpm_vendor_specific as it is used only by tpm_tis. Probably all of the fields should be eventually dropped and moved to the private structures of different drivers but it is better to do this one step at a time in order not to break anything. Signed-off-by: Jarkko Sakkinen Reviewed-by: Jason Gunthorpe --- drivers/char/tpm/tpm.h | 1 - drivers/char/tpm/tpm_i2c_nuvoton.c | 1 - drivers/char/tpm/tpm_tis.c | 19 ++++++++++++------- 3 files changed, 12 insertions(+), 9 deletions(-) diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index f197eef..4764545 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -148,7 +148,6 @@ struct tpm_vendor_specific { void *priv; wait_queue_head_t read_queue; - wait_queue_head_t int_queue; u16 manufacturer_id; }; diff --git a/drivers/char/tpm/tpm_i2c_nuvoton.c b/drivers/char/tpm/tpm_i2c_nuvoton.c index d61d43f..a43b5f3 100644 --- a/drivers/char/tpm/tpm_i2c_nuvoton.c +++ b/drivers/char/tpm/tpm_i2c_nuvoton.c @@ -540,7 +540,6 @@ static int i2c_nuvoton_probe(struct i2c_client *client, return -ENOMEM; init_waitqueue_head(&chip->vendor.read_queue); - init_waitqueue_head(&chip->vendor.int_queue); /* Default timeouts */ chip->vendor.timeout_a = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT); diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index eed3bf5..7d7a776 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -95,6 +95,7 @@ struct tpm_info { struct priv_data { bool irq_tested; + wait_queue_head_t int_queue; }; #if defined(CONFIG_PNP) && defined(CONFIG_ACPI) @@ -157,6 +158,7 @@ static void release_locality(struct tpm_chip *chip, int l, int force) static int request_locality(struct tpm_chip *chip, int l) { + struct priv_data *priv = chip->vendor.priv; unsigned long stop, timeout; long rc; @@ -173,7 +175,7 @@ again: timeout = stop - jiffies; if ((long)timeout <= 0) return -1; - rc = wait_event_interruptible_timeout(chip->vendor.int_queue, + rc = wait_event_interruptible_timeout(priv->int_queue, (check_locality (chip, l) >= 0), timeout); @@ -249,6 +251,7 @@ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count) static int tpm_tis_recv(struct tpm_chip *chip, u8 *buf, size_t count) { + struct priv_data *priv = chip->vendor.priv; int size = 0; int expected, status; @@ -279,7 +282,7 @@ static int tpm_tis_recv(struct tpm_chip *chip, u8 *buf, size_t count) } wait_for_tpm_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c, - &chip->vendor.int_queue, false); + &priv->int_queue, false); status = tpm_tis_status(chip); if (status & TPM_STS_DATA_AVAIL) { /* retry? */ dev_err(&chip->dev, "Error left over data\n"); @@ -304,6 +307,7 @@ MODULE_PARM_DESC(itpm, "Force iTPM workarounds (found on some Lenovo laptops)"); */ static int tpm_tis_send_data(struct tpm_chip *chip, u8 *buf, size_t len) { + struct priv_data *priv = chip->vendor.priv; int rc, status, burstcnt; size_t count = 0; @@ -315,7 +319,7 @@ static int tpm_tis_send_data(struct tpm_chip *chip, u8 *buf, size_t len) tpm_tis_ready(chip); if (wait_for_tpm_stat (chip, TPM_STS_COMMAND_READY, chip->vendor.timeout_b, - &chip->vendor.int_queue, false) < 0) { + &priv->int_queue, false) < 0) { rc = -ETIME; goto out_err; } @@ -330,7 +334,7 @@ static int tpm_tis_send_data(struct tpm_chip *chip, u8 *buf, size_t len) } wait_for_tpm_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c, - &chip->vendor.int_queue, false); + &priv->int_queue, false); status = tpm_tis_status(chip); if (!itpm && (status & TPM_STS_DATA_EXPECT) == 0) { rc = -EIO; @@ -342,7 +346,7 @@ static int tpm_tis_send_data(struct tpm_chip *chip, u8 *buf, size_t len) iowrite8(buf[count], chip->vendor.iobase + TPM_DATA_FIFO(chip->vendor.locality)); wait_for_tpm_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c, - &chip->vendor.int_queue, false); + &priv->int_queue, false); status = tpm_tis_status(chip); if ((status & TPM_STS_DATA_EXPECT) != 0) { rc = -EIO; @@ -537,6 +541,7 @@ static const struct tpm_class_ops tpm_tis = { static irqreturn_t tis_int_handler(int dummy, void *dev_id) { struct tpm_chip *chip = dev_id; + struct priv_data *priv = chip->vendor.priv; u32 interrupt; int i; @@ -556,7 +561,7 @@ static irqreturn_t tis_int_handler(int dummy, void *dev_id) if (interrupt & (TPM_INTF_LOCALITY_CHANGE_INT | TPM_INTF_STS_VALID_INT | TPM_INTF_CMD_READY_INT)) - wake_up_interruptible(&chip->vendor.int_queue); + wake_up_interruptible(&priv->int_queue); /* Clear interrupts handled with TPM_EOI */ iowrite32(interrupt, @@ -773,7 +778,7 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info, /* INTERRUPT Setup */ init_waitqueue_head(&chip->vendor.read_queue); - init_waitqueue_head(&chip->vendor.int_queue); + init_waitqueue_head(&priv->int_queue); if (interrupts && tpm_info->irq != -1) { if (tpm_info->irq) { tpm_tis_probe_irq_single(chip, intmask, IRQF_SHARED,