Merge bk://ppc@ppc.bkbits.net/for-linus-ppc

into kernel.crashing.org:/home/trini/work/kernel/pristine/for-linus-ppc

arch/ppc/Makefile

@@ -65,7 +65,13 @@ uImage: vmlinux
 	$(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@
 
 define archhelp
+  @echo '* zImage          - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)'
   @echo '  uImage          - Create a bootable image for U-Boot / PPCBoot'
+  @echo '  install         - Install kernel using'
+  @echo '                    (your) ~/bin/installkernel or'
+  @echo '                    (distribution) /sbin/installkernel or'
+  @echo '                    install to $$(INSTALL_PATH) and run lilo'
+  @echo '  *_defconfig     - Select default config from arch/$(ARCH)/ppc/configs'
 endef
 
 archclean:

arch/ppc/boot/common/ns16550.c

@@ -3,6 +3,8 @@
  */
 
 #include <linux/config.h>
+#include <linux/types.h>
+#include <linux/serial.h>
 #include <linux/serialP.h>
 #include <linux/serial_reg.h>
 #include <asm/serial.h>

fs/proc/proc_devtree.c

@@ -59,10 +59,13 @@ static void add_node(struct device_node *np, struct proc_dir_entry *de)
 		 * Unfortunately proc_register puts each new entry
 		 * at the beginning of the list.  So we rearrange them.
 		 */
-		ent = create_proc_read_entry(pp->name, S_IRUGO, de,
-					     property_read_proc, pp);
+		ent = create_proc_read_entry(pp->name, strncmp(pp->name, "security-", 9) ?
+					     S_IRUGO : S_IRUSR, de, property_read_proc, pp);
 		if (ent == 0)
 			break;
+		if (!strncmp(pp->name, "security-", 9))
+		     ent->size = 0; /* don't leak number of password chars */
+		else
 		     ent->size = pp->length;
 		*lastp = ent;
 		lastp = &ent->next;