5 files changed, 48 insertions, 12 deletions

diff --git a/Documentation/CodingStyle b/Documentation/CodingStyle
index 0ad6dcb5d45f..9069189e78ef 100644
--- a/Documentation/CodingStyle
+++ b/Documentation/CodingStyle
@@ -682,6 +682,24 @@ result.  Typical examples would be functions that return pointers; they use
 NULL or the ERR_PTR mechanism to report failure.
 
 
+                Chapter 17:  Don't re-invent the kernel macros
+
+The header file include/linux/kernel.h contains a number of macros that
+you should use, rather than explicitly coding some variant of them yourself.
+For example, if you need to calculate the length of an array, take advantage
+of the macro
+
+  #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
+Similarly, if you need to calculate the size of some structure member, use
+
+  #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
+
+There are also min() and max() macros that do strict type checking if you
+need them.  Feel free to peruse that header file to see what else is already
+defined that you shouldn't reproduce in your code.
+
+
 
                 Appendix I: References
 
diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt
index c6c9a9c10d7f..3adaace328a6 100644
--- a/Documentation/block/biodoc.txt
+++ b/Documentation/block/biodoc.txt
@@ -946,6 +946,13 @@ elevator_merged_fn		called when a request in the scheduler has been
                                 scheduler for example, to reposition the request
                                 if its sorting order has changed.
 
+elevator_allow_merge_fn         called whenever the block layer determines
+                                that a bio can be merged into an existing
+                                request safely. The io scheduler may still
+                                want to stop a merge at this point if it
+                                results in some sort of conflict internally,
+                                this hook allows it to do that.
+
 elevator_dispatch_fn            fills the dispatch queue with ready requests.
                                 I/O schedulers are free to postpone requests by
                                 not filling the dispatch queue unless @force
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index ef69c75780bf..25d298517104 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1714,6 +1714,14 @@ and is between 256 and 4096 characters. It is defined in the file
         uart6850=       [HW,OSS]
                         Format: <io>,<irq>
 
+        uhci-hcd.ignore_oc=
+                        [USB] Ignore overcurrent events (default N).
+                        Some badly-designed motherboards generate lots of
+                        bogus events, for ports that aren't wired to
+                        anything.  Set this parameter to avoid log spamming.
+                        Note that genuine overcurrent events won't be
+                        reported either.
+
         usbhid.mousepoll=
                         [USBHID] The interval which mice are to be polled at.
 
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index b3bd36668db3..33994271cb3b 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -1703,29 +1703,32 @@ platforms are moved over to use the flattened-device-tree model.
     Required properties:
 
      - device_type : has to be "rom"
-     - compatible : Should specify what this ROM device is compatible with
-       (i.e. "onenand"). Currently, this is most likely to be "direct-mapped"
-       (which corresponds to the MTD physmap mapping driver).
-     - regs : Offset and length of the register set (or memory mapping) for
+     - compatible : Should specify what this flash device is compatible with.
+       Currently, this is most likely to be "direct-mapped" (which
+       corresponds to the MTD physmap mapping driver).
+     - reg : Offset and length of the register set (or memory mapping) for
        the device.
+     - bank-width : Width of the flash data bus in bytes. Required
+       for the NOR flashes (compatible == "direct-mapped" and others) ONLY.
 
     Recommended properties :
 
-     - bank-width : Width of the flash data bus in bytes. Required
-       for the NOR flashes (compatible == "direct-mapped" and others) ONLY.
      - partitions : Several pairs of 32-bit values where the first value is
        partition's offset from the start of the device and the second one is
        partition size in bytes with LSB used to signify a read only
-       partititon (so, the parition size should always be an even number).
+       partition (so, the parition size should always be an even number).
      - partition-names : The list of concatenated zero terminated strings
        representing the partition names.
+     - probe-type : The type of probe which should be done for the chip
+       (JEDEC vs CFI actually). Valid ONLY for NOR flashes.
 
    Example:
 
         flash@ff000000 {
                 device_type = "rom";
                 compatible = "direct-mapped";
-                regs = <ff000000 01000000>;
+                probe-type = "CFI";
+                reg = <ff000000 01000000>;
                 bank-width = <4>;
                 partitions = <00000000 00f80000
                               00f80000 00080001>;
diff --git a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl b/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
index 077fbe25ebf4..ccd0a953953d 100644
--- a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
+++ b/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
@@ -927,7 +927,7 @@
           <informalexample>
             <programlisting>
 <![CDATA[
-  struct mychip *chip = (struct mychip *)card->private_data;
+  struct mychip *chip = card->private_data;
 ]]>
             </programlisting>
           </informalexample>
@@ -1095,7 +1095,7 @@
 
           /* release the irq */
           if (chip->irq >= 0)
-                  free_irq(chip->irq, (void *)chip);
+                  free_irq(chip->irq, chip);
           /* release the i/o ports & memory */
           pci_release_regions(chip->pci);
           /* disable the PCI entry */
@@ -1148,7 +1148,7 @@
           }
           chip->port = pci_resource_start(pci, 0);
           if (request_irq(pci->irq, snd_mychip_interrupt,
-                          IRQF_DISABLED|IRQF_SHARED, "My Chip", chip)) {
+                          IRQF_SHARED, "My Chip", chip)) {
                   printk(KERN_ERR "cannot grab irq %d\n", pci->irq);
                   snd_mychip_free(chip);
                   return -EBUSY;
@@ -1387,7 +1387,7 @@
           <programlisting>
 <![CDATA[
   if (chip->irq >= 0)
-          free_irq(chip->irq, (void *)chip);
+          free_irq(chip->irq, chip);
 ]]>
           </programlisting>
         </informalexample>