---

yaml
---
r: 236863
b: refs/heads/master
c: 8fe7350
h: refs/heads/master
i:
  236861: 0774a5e
  236859: 0ef4479
  236855: 177fb73
  236847: 4684055
  236831: 2aadb29
  236799: 21adee5
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9291747f118d6404e509747b85ff5f6dfec368d2
+refs/heads/master: 8fe73503fae8cb8f00c80dd6444c1ddcd19257bd

trunk/Documentation/ABI/testing/sysfs-platform-at91

@@ -0,0 +1,25 @@
+What:		/sys/devices/platform/at91_can/net/<iface>/mb0_id
+Date:		January 2011
+KernelVersion:	2.6.38
+Contact:	Marc Kleine-Budde <kernel@pengutronix.de>
+Description:
+		Value representing the can_id of mailbox 0.
+
+		Default: 0x7ff (standard frame)
+
+		Due to a chip bug (errata 50.2.6.3 & 50.3.5.3 in
+		"AT91SAM9263 Preliminary 6249H-ATARM-27-Jul-09") the
+		contents of mailbox 0 may be send under certain
+		conditions (even if disabled or in rx mode).
+
+		The workaround in the errata suggests not to use the
+		mailbox and load it with an unused identifier.
+
+		In order to use an extended can_id add the
+		CAN_EFF_FLAG (0x80000000U) to the can_id. Example:
+
+		- standard id 0x7ff:
+		echo 0x7ff      > /sys/class/net/can0/mb0_id
+
+		- extended id 0x1fffffff:
+		echo 0x9fffffff > /sys/class/net/can0/mb0_id

trunk/Documentation/DocBook/device-drivers.tmpl

@@ -217,8 +217,8 @@ X!Isound/sound_firmware.c
   <chapter id="uart16x50">
      <title>16x50 UART Driver</title>
 !Iinclude/linux/serial_core.h
-!Edrivers/serial/serial_core.c
-!Edrivers/serial/8250.c
+!Edrivers/tty/serial/serial_core.c
+!Edrivers/tty/serial/8250.c
   </chapter>
 
   <chapter id="fbdev">

trunk/Documentation/DocBook/dvb/dvbapi.xml

@@ -28,7 +28,7 @@
 	<holder>Convergence GmbH</holder>
 </copyright>
 <copyright>
-	<year>2009-2010</year>
+	<year>2009-2011</year>
 	<holder>Mauro Carvalho Chehab</holder>
 </copyright>
 

trunk/Documentation/DocBook/media.tmpl

@@ -28,7 +28,7 @@
 <title>LINUX MEDIA INFRASTRUCTURE API</title>
 
 <copyright>
-	<year>2009-2010</year>
+	<year>2009-2011</year>
 	<holder>LinuxTV Developers</holder>
 </copyright>
 
@@ -86,7 +86,7 @@ Foundation. A copy of the license is included in the chapter entitled
 </author>
 </authorgroup>
 <copyright>
-	<year>2009-2010</year>
+	<year>2009-2011</year>
 	<holder>Mauro Carvalho Chehab</holder>
 </copyright>
 

trunk/Documentation/DocBook/v4l/dev-rds.xml

@@ -75,6 +75,7 @@ as follows:</para>
   </section>
 
   <section>
+    <title>RDS datastructures</title>
     <table frame="none" pgwide="1" id="v4l2-rds-data">
       <title>struct
 <structname>v4l2_rds_data</structname></title>
@@ -129,10 +130,11 @@ as follows:</para>
 
     <table frame="none" pgwide="1" id="v4l2-rds-block-codes">
       <title>Block defines</title>
-      <tgroup cols="3">
+      <tgroup cols="4">
 	<colspec colname="c1" colwidth="1*" />
 	<colspec colname="c2" colwidth="1*" />
-	<colspec colname="c3" colwidth="5*" />
+	<colspec colname="c3" colwidth="1*" />
+	<colspec colname="c4" colwidth="5*" />
 	<tbody valign="top">
 	  <row>
 	    <entry>V4L2_RDS_BLOCK_MSK</entry>

trunk/Documentation/DocBook/v4l/v4l2.xml

@@ -100,6 +100,7 @@ Remote Controller chapter.</contrib>
       <year>2008</year>
       <year>2009</year>
       <year>2010</year>
+      <year>2011</year>
       <holder>Bill Dirks, Michael H. Schimek, Hans Verkuil, Martin
 Rubli, Andy Walls, Muralidharan Karicheri, Mauro Carvalho Chehab</holder>
     </copyright>
@@ -381,7 +382,7 @@ and discussions on the V4L mailing list.</revremark>
 </partinfo>
 
 <title>Video for Linux Two API Specification</title>
- <subtitle>Revision 2.6.33</subtitle>
+ <subtitle>Revision 2.6.38</subtitle>
 
   <chapter id="common">
     &sub-common;

trunk/Documentation/feature-removal-schedule.txt

@@ -357,14 +357,6 @@ Who:	Dave Jones <davej@redhat.com>, Matthew Garrett <mjg@redhat.com>
 
 -----------------------------
 
-What:	__do_IRQ all in one fits nothing interrupt handler
-When:	2.6.32
-Why:	__do_IRQ was kept for easy migration to the type flow handlers.
-	More than two years of migration time is enough.
-Who:	Thomas Gleixner <tglx@linutronix.de>
-
------------------------------
-
 What:	fakephp and associated sysfs files in /sys/bus/pci/slots/
 When:	2011
 Why:	In 2.6.27, the semantics of /sys/bus/pci/slots was redefined to

trunk/Documentation/lguest/lguest.c

@@ -39,6 +39,9 @@
 #include <limits.h>
 #include <stddef.h>
 #include <signal.h>
+#include <pwd.h>
+#include <grp.h>
+
 #include <linux/virtio_config.h>
 #include <linux/virtio_net.h>
 #include <linux/virtio_blk.h>
@@ -298,20 +301,27 @@ static void *map_zeroed_pages(unsigned int num)
 
 	/*
 	 * We use a private mapping (ie. if we write to the page, it will be
-	 * copied).
+	 * copied). We allocate an extra two pages PROT_NONE to act as guard
+	 * pages against read/write attempts that exceed allocated space.
 	 */
-	addr = mmap(NULL, getpagesize() * num,
-		    PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, fd, 0);
+	addr = mmap(NULL, getpagesize() * (num+2),
+		    PROT_NONE, MAP_PRIVATE, fd, 0);
+
 	if (addr == MAP_FAILED)
 		err(1, "Mmapping %u pages of /dev/zero", num);
 
+	if (mprotect(addr + getpagesize(), getpagesize() * num,
+		     PROT_READ|PROT_WRITE) == -1)
+		err(1, "mprotect rw %u pages failed", num);
+
 	/*
 	 * One neat mmap feature is that you can close the fd, and it
 	 * stays mapped.
 	 */
 	close(fd);
 
-	return addr;
+	/* Return address after PROT_NONE page */
+	return addr + getpagesize();
 }
 
 /* Get some more pages for a device. */
@@ -343,7 +353,7 @@ static void map_at(int fd, void *addr, unsigned long offset, unsigned long len)
 	 * done to it.  This allows us to share untouched memory between
 	 * Guests.
 	 */
-	if (mmap(addr, len, PROT_READ|PROT_WRITE|PROT_EXEC,
+	if (mmap(addr, len, PROT_READ|PROT_WRITE,
 		 MAP_FIXED|MAP_PRIVATE, fd, offset) != MAP_FAILED)
 		return;
 
@@ -573,10 +583,10 @@ static void *_check_pointer(unsigned long addr, unsigned int size,
 			    unsigned int line)
 {
 	/*
-	 * We have to separately check addr and addr+size, because size could
-	 * be huge and addr + size might wrap around.
+	 * Check if the requested address and size exceeds the allocated memory,
+	 * or addr + size wraps around.
 	 */
-	if (addr >= guest_limit || addr + size >= guest_limit)
+	if ((addr + size) > guest_limit || (addr + size) < addr)
 		errx(1, "%s:%i: Invalid address %#lx", __FILE__, line, addr);
 	/*
 	 * We return a pointer for the caller's convenience, now we know it's
@@ -1872,6 +1882,8 @@ static struct option opts[] = {
 	{ "block", 1, NULL, 'b' },
 	{ "rng", 0, NULL, 'r' },
 	{ "initrd", 1, NULL, 'i' },
+	{ "username", 1, NULL, 'u' },
+	{ "chroot", 1, NULL, 'c' },
 	{ NULL },
 };
 static void usage(void)
@@ -1894,6 +1906,12 @@ int main(int argc, char *argv[])
 	/* If they specify an initrd file to load. */
 	const char *initrd_name = NULL;
 
+	/* Password structure for initgroups/setres[gu]id */
+	struct passwd *user_details = NULL;
+
+	/* Directory to chroot to */
+	char *chroot_path = NULL;
+
 	/* Save the args: we "reboot" by execing ourselves again. */
 	main_args = argv;
 
@@ -1950,6 +1968,14 @@ int main(int argc, char *argv[])
 		case 'i':
 			initrd_name = optarg;
 			break;
+		case 'u':
+			user_details = getpwnam(optarg);
+			if (!user_details)
+				err(1, "getpwnam failed, incorrect username?");
+			break;
+		case 'c':
+			chroot_path = optarg;
+			break;
 		default:
 			warnx("Unknown argument %s", argv[optind]);
 			usage();
@@ -2021,6 +2047,37 @@ int main(int argc, char *argv[])
 	/* If we exit via err(), this kills all the threads, restores tty. */
 	atexit(cleanup_devices);
 
+	/* If requested, chroot to a directory */
+	if (chroot_path) {
+		if (chroot(chroot_path) != 0)
+			err(1, "chroot(\"%s\") failed", chroot_path);
+
+		if (chdir("/") != 0)
+			err(1, "chdir(\"/\") failed");
+
+		verbose("chroot done\n");
+	}
+
+	/* If requested, drop privileges */
+	if (user_details) {
+		uid_t u;
+		gid_t g;
+
+		u = user_details->pw_uid;
+		g = user_details->pw_gid;
+
+		if (initgroups(user_details->pw_name, g) != 0)
+			err(1, "initgroups failed");
+
+		if (setresgid(g, g, g) != 0)
+			err(1, "setresgid failed");
+
+		if (setresuid(u, u, u) != 0)
+			err(1, "setresuid failed");
+
+		verbose("Dropping privileges completed\n");
+	}
+
 	/* Finally, run the Guest.  This doesn't return. */
 	run_guest();
 }

trunk/Documentation/lguest/lguest.txt

@@ -117,6 +117,11 @@ Running Lguest:
 
   for general information on how to get bridging to work.
 
+- Random number generation. Using the --rng option will provide a
+  /dev/hwrng in the guest that will read from the host's /dev/random.
+  Use this option in conjunction with rng-tools (see ../hw_random.txt)
+  to provide entropy to the guest kernel's /dev/random.
+
 There is a helpful mailing list at http://ozlabs.org/mailman/listinfo/lguest
 
 Good luck!

trunk/Documentation/networking/batman-adv.txt

@@ -1,4 +1,4 @@
-[state: 21-11-2010]
+[state: 27-01-2011]
 
 BATMAN-ADV
 ----------
@@ -67,15 +67,16 @@ All  mesh  wide  settings  can be found in batman's own interface
 folder:
 
 #  ls  /sys/class/net/bat0/mesh/
-#  aggregated_ogms  bonding  fragmentation  orig_interval
-#  vis_mode
+#  aggregated_ogms  gw_bandwidth  hop_penalty
+#  bonding          gw_mode       orig_interval
+#  fragmentation    gw_sel_class  vis_mode
 
 
 There is a special folder for debugging informations:
 
 #  ls /sys/kernel/debug/batman_adv/bat0/
-#  originators  socket  transtable_global  transtable_local
-#  vis_data
+#  gateways     socket        transtable_global  vis_data
+#  originators  softif_neigh  transtable_local
 
 
 Some of the files contain all sort of status information  regard-
@@ -230,9 +231,8 @@ CONTACT
 Please send us comments, experiences, questions, anything :)
 
 IRC:            #batman   on   irc.freenode.org
-Mailing-list:   b.a.t.m.a.n@b.a.t.m.a.n@lists.open-mesh.org
-                (optional   subscription   at
-                 https://lists.open-mesh.org/mm/listinfo/b.a.t.m.a.n)
+Mailing-list:   b.a.t.m.a.n@open-mesh.org (optional  subscription
+          at https://lists.open-mesh.org/mm/listinfo/b.a.t.m.a.n)
 
 You can also contact the Authors: