[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20200716030847.1564131-2-keescook@chromium.org>
Date: Wed, 15 Jul 2020 20:08:45 -0700
From: Kees Cook <keescook@...omium.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Kees Cook <keescook@...omium.org>,
Thomas Gleixner <tglx@...utronix.de>,
Allen Pais <allen.lkml@...il.com>,
Oscar Carter <oscar.carter@....com>,
Romain Perier <romain.perier@...il.com>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Kevin Curtis <kevin.curtis@...site.co.uk>,
"David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Harald Freudenberger <freude@...ux.ibm.com>,
Heiko Carstens <hca@...ux.ibm.com>,
Vasily Gorbik <gor@...ux.ibm.com>,
Christian Borntraeger <borntraeger@...ibm.com>,
Jiri Slaby <jslaby@...e.com>,
Felipe Balbi <balbi@...nel.org>,
Jason Wessel <jason.wessel@...driver.com>,
Daniel Thompson <daniel.thompson@...aro.org>,
Douglas Anderson <dianders@...omium.org>,
Mitchell Blank Jr <mitch@...oth.com>,
Julian Wiedmann <jwi@...ux.ibm.com>,
Karsten Graul <kgraul@...ux.ibm.com>,
Ursula Braun <ubraun@...ux.ibm.com>,
Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>,
Christian Gromm <christian.gromm@...rochip.com>,
Nishka Dasgupta <nishkadg.linux@...il.com>,
Masahiro Yamada <masahiroy@...nel.org>,
Stephen Boyd <swboyd@...omium.org>,
"Matthew Wilcox (Oracle)" <willy@...radead.org>,
Wambui Karuga <wambui.karugax@...il.com>,
Guenter Roeck <linux@...ck-us.net>,
Chris Packham <chris.packham@...iedtelesis.co.nz>,
Kyungtae Kim <kt0755@...il.com>,
Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@...ux.intel.com>,
Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
Jonathan Corbet <corbet@....net>,
Peter Zijlstra <peterz@...radead.org>,
Will Deacon <will@...nel.org>,
linux-input@...r.kernel.org,
linux-kernel@...r.kernel.org,
netdev@...r.kernel.org,
linux-s390@...r.kernel.org,
devel@...verdev.osuosl.org,
linux-usb@...r.kernel.org,
kgdb-bugreport@...ts.sourceforge.net,
alsa-devel@...a-project.org,
kernel-hardening@...ts.openwall.com
Subject: [PATCH 1/3] usb: gadget: udc: Avoid tasklet passing a global
There's no reason for the tasklet callback to set an argument since it
always uses a global. Instead, use the global directly, in preparation
for converting the tasklet subsystem to modern callback conventions.
Signed-off-by: Kees Cook <keescook@...omium.org>
---
drivers/usb/gadget/udc/snps_udc_core.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/gadget/udc/snps_udc_core.c b/drivers/usb/gadget/udc/snps_udc_core.c
index 3fcded31405a..afdd28f332ce 100644
--- a/drivers/usb/gadget/udc/snps_udc_core.c
+++ b/drivers/usb/gadget/udc/snps_udc_core.c
@@ -96,9 +96,7 @@ static int stop_pollstall_timer;
static DECLARE_COMPLETION(on_pollstall_exit);
/* tasklet for usb disconnect */
-static DECLARE_TASKLET(disconnect_tasklet, udc_tasklet_disconnect,
- (unsigned long) &udc);
-
+static DECLARE_TASKLET(disconnect_tasklet, udc_tasklet_disconnect, 0);
/* endpoint names used for print */
static const char ep0_string[] = "ep0in";
@@ -1661,7 +1659,7 @@ static void usb_disconnect(struct udc *dev)
/* Tasklet for disconnect to be outside of interrupt context */
static void udc_tasklet_disconnect(unsigned long par)
{
- struct udc *dev = (struct udc *)(*((struct udc **) par));
+ struct udc *dev = udc;
u32 tmp;
DBG(dev, "Tasklet disconnect\n");
--
2.25.1
Powered by blists - more mailing lists
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
