linux-kernel - [PATCH 04/13] timer: Remove init_timer_pinned() in favor of timer

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Message-Id: <1507159627-127660-5-git-send-email-keescook@chromium.org>
Date:   Wed,  4 Oct 2017 16:26:58 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Kees Cook <keescook@...omium.org>,
        Chris Metcalf <cmetcalf@...lanox.com>, netdev@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Arnd Bergmann <arnd@...db.de>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Harish Patil <harish.patil@...ium.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        "James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>,
        John Stultz <john.stultz@...aro.org>,
        Julian Wiedmann <jwi@...ux.vnet.ibm.com>,
        Kalle Valo <kvalo@....qualcomm.com>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Len Brown <len.brown@...el.com>,
        Manish Chopra <manish.chopra@...ium.com>,
        Mark Gross <mark.gross@...el.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Michael Reed <mdr@....com>, Oleg Nesterov <oleg@...hat.com>,
        Paul Mackerras <paulus@...ba.org>, Pavel Machek <pavel@....cz>,
        Petr Mladek <pmladek@...e.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Sebastian Reichel <sre@...nel.org>,
        Stefan Richter <stefanr@...6.in-berlin.de>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Sudip Mukherjee <sudipm.mukherjee@...il.com>,
        Tejun Heo <tj@...nel.org>,
        Ursula Braun <ubraun@...ux.vnet.ibm.com>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Wim Van Sebroeck <wim@...ana.be>,
        linux1394-devel@...ts.sourceforge.net, linux-mips@...ux-mips.org,
        linux-pm@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-s390@...r.kernel.org, linux-scsi@...r.kernel.org,
        linux-watchdog@...r.kernel.org, linux-wireless@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 04/13] timer: Remove init_timer_pinned() in favor of timer_setup()

This refactors the only users of init_timer_pinned() to use
the new timer_setup() and from_timer(). Drops the definition of
init_timer_pinned().

Cc: Chris Metcalf <cmetcalf@...lanox.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: netdev@...r.kernel.org
Signed-off-by: Kees Cook <keescook@...omium.org>
---
 drivers/net/ethernet/tile/tilepro.c | 9 ++++-----
 include/linux/timer.h               | 2 --
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/tile/tilepro.c b/drivers/net/ethernet/tile/tilepro.c
index 49ccee4b9aec..56d06282fbde 100644
--- a/drivers/net/ethernet/tile/tilepro.c
+++ b/drivers/net/ethernet/tile/tilepro.c
@@ -608,9 +608,9 @@ static void tile_net_schedule_egress_timer(struct tile_net_cpu *info)
  * ISSUE: Maybe instead track number of expected completions, and free
  * only that many, resetting to zero if "pending" is ever false.
  */
-static void tile_net_handle_egress_timer(unsigned long arg)
+static void tile_net_handle_egress_timer(struct timer_list *t)
 {
-	struct tile_net_cpu *info = (struct tile_net_cpu *)arg;
+	struct tile_net_cpu *info = from_timer(info, t, egress_timer);
 	struct net_device *dev = info->napi.dev;
 
 	/* The timer is no longer scheduled. */
@@ -1004,9 +1004,8 @@ static void tile_net_register(void *dev_ptr)
 		BUG();
 
 	/* Initialize the egress timer. */
-	init_timer_pinned(&info->egress_timer);
-	info->egress_timer.data = (long)info;
-	info->egress_timer.function = tile_net_handle_egress_timer;
+	timer_setup(&info->egress_timer, tile_net_handle_egress_timer,
+		    TIMER_PINNED);
 
 	u64_stats_init(&info->stats.syncp);
 
diff --git a/include/linux/timer.h b/include/linux/timer.h
index b10c4bdc6fbd..9da903562ed4 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -128,8 +128,6 @@ static inline void init_timer_on_stack_key(struct timer_list *timer,
 
 #define init_timer(timer)						\
 	__init_timer((timer), 0)
-#define init_timer_pinned(timer)					\
-	__init_timer((timer), TIMER_PINNED)
 #define init_timer_deferrable(timer)					\
 	__init_timer((timer), TIMER_DEFERRABLE)
 
-- 
2.7.4