Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752107AbdHaXas (ORCPT ); Thu, 31 Aug 2017 19:30:48 -0400 Received: from mail-pg0-f48.google.com ([74.125.83.48]:36169 "EHLO mail-pg0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751964AbdHaXaG (ORCPT ); Thu, 31 Aug 2017 19:30:06 -0400 X-Google-Smtp-Source: ADKCNb5qyKHCTXKA0o1fu9wolRN26nRFlTB3mMqBffF+j4TVPdvh7idLdZJoA1Wm5cL7sgCj9OiXbg== From: Kees Cook To: Thomas Gleixner Cc: Kees Cook , Krzysztof Halasa , Aditya Shankar , Ganesh Krishna , Greg Kroah-Hartman , Jens Axboe , netdev@vger.kernel.org, linux-wireless@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org Subject: [PATCH 13/31] timer: Remove meaningless .data/.function assignments Date: Thu, 31 Aug 2017 16:29:25 -0700 Message-Id: <1504222183-61202-14-git-send-email-keescook@chromium.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1504222183-61202-1-git-send-email-keescook@chromium.org> References: <1504222183-61202-1-git-send-email-keescook@chromium.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3348 Lines: 98 Several timer users needlessly reset their .function/.data fields during their timer callback, but nothing else changes them. Some users do not use their .data field at all. Each instance is removed here. Cc: Krzysztof Halasa Cc: Aditya Shankar Cc: Ganesh Krishna Cc: Greg Kroah-Hartman Cc: Jens Axboe Cc: netdev@vger.kernel.org Cc: linux-wireless@vger.kernel.org Cc: devel@driverdev.osuosl.org Signed-off-by: Kees Cook --- drivers/block/amiflop.c | 3 +-- drivers/net/wan/hdlc_cisco.c | 2 -- drivers/net/wan/hdlc_fr.c | 2 -- drivers/staging/wilc1000/wilc_wfi_cfgoperations.c | 4 +--- 4 files changed, 2 insertions(+), 9 deletions(-) diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c index c4b1cba27178..6680d75bc857 100644 --- a/drivers/block/amiflop.c +++ b/drivers/block/amiflop.c @@ -323,7 +323,7 @@ static void fd_deselect (int drive) } -static void motor_on_callback(unsigned long nr) +static void motor_on_callback(unsigned long ignored) { if (!(ciaa.pra & DSKRDY) || --on_attempts == 0) { complete_all(&motor_on_completion); @@ -344,7 +344,6 @@ static int fd_motor_on(int nr) fd_select(nr); reinit_completion(&motor_on_completion); - motor_on_timer.data = nr; mod_timer(&motor_on_timer, jiffies + HZ/2); on_attempts = 10; diff --git a/drivers/net/wan/hdlc_cisco.c b/drivers/net/wan/hdlc_cisco.c index c696d42f4502..6c98d85f2773 100644 --- a/drivers/net/wan/hdlc_cisco.c +++ b/drivers/net/wan/hdlc_cisco.c @@ -276,8 +276,6 @@ static void cisco_timer(unsigned long arg) spin_unlock(&st->lock); st->timer.expires = jiffies + st->settings.interval * HZ; - st->timer.function = cisco_timer; - st->timer.data = arg; add_timer(&st->timer); } diff --git a/drivers/net/wan/hdlc_fr.c b/drivers/net/wan/hdlc_fr.c index de42faca076a..7da2424c28a4 100644 --- a/drivers/net/wan/hdlc_fr.c +++ b/drivers/net/wan/hdlc_fr.c @@ -644,8 +644,6 @@ static void fr_timer(unsigned long arg) state(hdlc)->settings.t391 * HZ; } - state(hdlc)->timer.function = fr_timer; - state(hdlc)->timer.data = arg; add_timer(&state(hdlc)->timer); } diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index 68fd5b3b8b2d..2fca2b017093 100644 --- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -275,7 +275,7 @@ static void update_scan_time(void) last_scanned_shadow[i].time_scan = jiffies; } -static void remove_network_from_shadow(unsigned long arg) +static void remove_network_from_shadow(unsigned long unused) { unsigned long now = jiffies; int i, j; @@ -296,7 +296,6 @@ static void remove_network_from_shadow(unsigned long arg) } if (last_scanned_cnt != 0) { - hAgingTimer.data = arg; mod_timer(&hAgingTimer, jiffies + msecs_to_jiffies(AGING_TIME)); } } @@ -313,7 +312,6 @@ static int is_network_in_shadow(struct network_info *pstrNetworkInfo, int i; if (last_scanned_cnt == 0) { - hAgingTimer.data = (unsigned long)user_void; mod_timer(&hAgingTimer, jiffies + msecs_to_jiffies(AGING_TIME)); state = -1; } else { -- 2.7.4