This adds the documentation for the extended crashkernel syntax into

Documentation/kernel-parameters.txt.
Signed-off-by: Bernhard Walle <bwalle@suse.de>
---

 Documentation/kernel-parameters.txt |    7 +++++++

 1 file changed, 7 insertions(+)
--- a/Documentation/kernel-parameters.txt

+++ b/Documentation/kernel-parameters.txt

@@ -498,6 +498,13 @@ and is between 256 and 4096 characters.

 			[KNL] Reserve a chunk of physical memory to

 			hold a kernel to switch to with kexec on panic.
+	crashkernel=range1:size1[,range2:size2,...][@offset]

+			[KNL] Same as above, but depends on the memory

+			in the running system. The syntax of range is

+			start-[end] where start and end are both

+			a memory unit (amount[KMG]). See also

+			Documentation/kdump/kdump.txt for a example.

+

 	cs4232=		[HW,OSS]

 			Format: <io>,<irq>,<dma>,<dma2>,<mpuio>,<mpuirq>
-