linux-kernel - [PATCH] tg3: remove redundant pm init code

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <1370244981-11716-1-git-send-email-wangyijing@huawei.com>
Date:	Mon, 3 Jun 2013 15:36:21 +0800
From:	Yijing Wang <wangyijing@...wei.com>
To:	"David S. Miller" <davem@...emloft.net>
CC:	<linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
	Hanjun Guo <guohanjun@...wei.com>,
	Jiang Liu <liuj97@...il.com>,
	Yijing Wang <wangyijing@...wei.com>
Subject: [PATCH] tg3: remove redundant pm init code

Pci_enable_device() will set device pm state to D0, so
it's no need to do it again in tg3_init_one().

Acked-by: Michael Chan <mchan@...adcom.com>
Signed-off-by: Yijing Wang <wangyijing@...wei.com>
---
 drivers/net/ethernet/broadcom/tg3.c |   24 +++---------------------
 1 files changed, 3 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 728d42a..ca5bc7e 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -17020,7 +17020,7 @@ static int tg3_init_one(struct pci_dev *pdev,
 {
 	struct net_device *dev;
 	struct tg3 *tp;
-	int i, err, pm_cap;
+	int i, err;
 	u32 sndmbx, rcvmbx, intmbx;
 	char str[40];
 	u64 dma_mask, persist_dma_mask;
@@ -17042,25 +17042,10 @@ static int tg3_init_one(struct pci_dev *pdev,
 
 	pci_set_master(pdev);
 
-	/* Find power-management capability. */
-	pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
-	if (pm_cap == 0) {
-		dev_err(&pdev->dev,
-			"Cannot find Power Management capability, aborting\n");
-		err = -EIO;
-		goto err_out_free_res;
-	}
-
-	err = pci_set_power_state(pdev, PCI_D0);
-	if (err) {
-		dev_err(&pdev->dev, "Transition to D0 failed, aborting\n");
-		goto err_out_free_res;
-	}
-
 	dev = alloc_etherdev_mq(sizeof(*tp), TG3_IRQ_MAX_VECS);
 	if (!dev) {
 		err = -ENOMEM;
-		goto err_out_power_down;
+		goto err_out_free_res;
 	}
 
 	SET_NETDEV_DEV(dev, &pdev->dev);
@@ -17068,7 +17053,7 @@ static int tg3_init_one(struct pci_dev *pdev,
 	tp = netdev_priv(dev);
 	tp->pdev = pdev;
 	tp->dev = dev;
-	tp->pm_cap = pm_cap;
+	tp->pm_cap = pdev->pm_cap;
 	tp->rx_mode = TG3_DEF_RX_MODE;
 	tp->tx_mode = TG3_DEF_TX_MODE;
 	tp->irq_sync = 1;
@@ -17406,9 +17391,6 @@ err_out_iounmap:
 err_out_free_dev:
 	free_netdev(dev);
 
-err_out_power_down:
-	pci_set_power_state(pdev, PCI_D3hot);
-
 err_out_free_res:
 	pci_release_regions(pdev);
 
-- 
1.7.1


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/