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>] [day] [month] [year] [list]
Message-ID: <20171018202331.GA7973@beast>
Date:   Wed, 18 Oct 2017 13:23:31 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Sergio Paracuellos <sergio.paracuellos@...il.com>,
        Adrien Descamps <adrien.descamps@...il.com>,
        Thibaut SAUTEREAU <thibaut.sautereau@...ecom-sudparis.eu>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH] staging: wlan-ng: Convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Sergio Paracuellos <sergio.paracuellos@...il.com>
Cc: Adrien Descamps <adrien.descamps@...il.com>
Cc: Thibaut SAUTEREAU <thibaut.sautereau@...ecom-sudparis.eu>
Cc: devel@...verdev.osuosl.org
Signed-off-by: Kees Cook <keescook@...omium.org>
---
 drivers/staging/wlan-ng/hfa384x_usb.c | 29 +++++++++++++----------------
 drivers/staging/wlan-ng/prism2mgmt.h  |  2 +-
 drivers/staging/wlan-ng/prism2sta.c   |  4 ++--
 3 files changed, 16 insertions(+), 19 deletions(-)

diff --git a/drivers/staging/wlan-ng/hfa384x_usb.c b/drivers/staging/wlan-ng/hfa384x_usb.c
index d1e8218f96fb..5975d47dfa71 100644
--- a/drivers/staging/wlan-ng/hfa384x_usb.c
+++ b/drivers/staging/wlan-ng/hfa384x_usb.c
@@ -184,11 +184,11 @@ static void hfa384x_usbin_ctlx(struct hfa384x *hw, union hfa384x_usbin *usbin,
 
 static void hfa384x_usbctlxq_run(struct hfa384x *hw);
 
-static void hfa384x_usbctlx_reqtimerfn(unsigned long data);
+static void hfa384x_usbctlx_reqtimerfn(struct timer_list *t);
 
-static void hfa384x_usbctlx_resptimerfn(unsigned long data);
+static void hfa384x_usbctlx_resptimerfn(struct timer_list *t);
 
-static void hfa384x_usb_throttlefn(unsigned long data);
+static void hfa384x_usb_throttlefn(struct timer_list *t);
 
 static void hfa384x_usbctlx_completion_task(unsigned long data);
 
@@ -558,13 +558,11 @@ void hfa384x_create(struct hfa384x *hw, struct usb_device *usb)
 	INIT_WORK(&hw->link_bh, prism2sta_processing_defer);
 	INIT_WORK(&hw->usb_work, hfa384x_usb_defer);
 
-	setup_timer(&hw->throttle, hfa384x_usb_throttlefn, (unsigned long)hw);
+	timer_setup(&hw->throttle, hfa384x_usb_throttlefn, 0);
 
-	setup_timer(&hw->resptimer, hfa384x_usbctlx_resptimerfn,
-		    (unsigned long)hw);
+	timer_setup(&hw->resptimer, hfa384x_usbctlx_resptimerfn, 0);
 
-	setup_timer(&hw->reqtimer, hfa384x_usbctlx_reqtimerfn,
-		    (unsigned long)hw);
+	timer_setup(&hw->reqtimer, hfa384x_usbctlx_reqtimerfn, 0);
 
 	usb_init_urb(&hw->rx_urb);
 	usb_init_urb(&hw->tx_urb);
@@ -574,8 +572,7 @@ void hfa384x_create(struct hfa384x *hw, struct usb_device *usb)
 	hw->state = HFA384x_STATE_INIT;
 
 	INIT_WORK(&hw->commsqual_bh, prism2sta_commsqual_defer);
-	setup_timer(&hw->commsqual_timer, prism2sta_commsqual_timer,
-		    (unsigned long)hw);
+	timer_setup(&hw->commsqual_timer, prism2sta_commsqual_timer, 0);
 }
 
 /*----------------------------------------------------------------
@@ -3800,9 +3797,9 @@ static void hfa384x_ctlxout_callback(struct urb *urb)
  *	interrupt
  *----------------------------------------------------------------
  */
-static void hfa384x_usbctlx_reqtimerfn(unsigned long data)
+static void hfa384x_usbctlx_reqtimerfn(struct timer_list *t)
 {
-	struct hfa384x *hw = (struct hfa384x *)data;
+	struct hfa384x *hw = from_timer(hw, t, reqtimer);
 	unsigned long flags;
 
 	spin_lock_irqsave(&hw->ctlxq.lock, flags);
@@ -3859,9 +3856,9 @@ static void hfa384x_usbctlx_reqtimerfn(unsigned long data)
  *	interrupt
  *----------------------------------------------------------------
  */
-static void hfa384x_usbctlx_resptimerfn(unsigned long data)
+static void hfa384x_usbctlx_resptimerfn(struct timer_list *t)
 {
-	struct hfa384x *hw = (struct hfa384x *)data;
+	struct hfa384x *hw = from_timer(hw, t, resptimer);
 	unsigned long flags;
 
 	spin_lock_irqsave(&hw->ctlxq.lock, flags);
@@ -3899,9 +3896,9 @@ static void hfa384x_usbctlx_resptimerfn(unsigned long data)
  *	Interrupt
  *----------------------------------------------------------------
  */
-static void hfa384x_usb_throttlefn(unsigned long data)
+static void hfa384x_usb_throttlefn(struct timer_list *t)
 {
-	struct hfa384x *hw = (struct hfa384x *)data;
+	struct hfa384x *hw = from_timer(hw, t, throttle);
 	unsigned long flags;
 
 	spin_lock_irqsave(&hw->ctlxq.lock, flags);
diff --git a/drivers/staging/wlan-ng/prism2mgmt.h b/drivers/staging/wlan-ng/prism2mgmt.h
index 88b979ff68b3..c062418f1202 100644
--- a/drivers/staging/wlan-ng/prism2mgmt.h
+++ b/drivers/staging/wlan-ng/prism2mgmt.h
@@ -109,7 +109,7 @@ int prism2mgmt_get_grpaddr_index(u32 did);
 void prism2sta_processing_defer(struct work_struct *data);
 
 void prism2sta_commsqual_defer(struct work_struct *data);
-void prism2sta_commsqual_timer(unsigned long data);
+void prism2sta_commsqual_timer(struct timer_list *t);
 
 /* Interface callback functions, passing data back up to the cfg80211 layer */
 void prism2_connect_result(struct wlandevice *wlandev, u8 failed);
diff --git a/drivers/staging/wlan-ng/prism2sta.c b/drivers/staging/wlan-ng/prism2sta.c
index 070a237004cb..99316b9a4e49 100644
--- a/drivers/staging/wlan-ng/prism2sta.c
+++ b/drivers/staging/wlan-ng/prism2sta.c
@@ -2004,9 +2004,9 @@ void prism2sta_commsqual_defer(struct work_struct *data)
 	mod_timer(&hw->commsqual_timer, jiffies + HZ);
 }
 
-void prism2sta_commsqual_timer(unsigned long data)
+void prism2sta_commsqual_timer(struct timer_list *t)
 {
-	struct hfa384x *hw = (struct hfa384x *)data;
+	struct hfa384x *hw = from_timer(hw, t, commsqual_timer);
 
 	schedule_work(&hw->commsqual_bh);
 }
-- 
2.7.4


-- 
Kees Cook
Pixel Security

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ