doc: small kernel-parameters updates

Change last "i386" to X86-32 as is used throughout the rest of the file.
Change combination of X86-32,X86-64 to just X86, as is done throughout the
rest of the file.

Add a note that hyphens and underscores are equivalent in parameter names,
with examples.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Jan Engelhardt <jengelh@medozas.de>
Cc: Christopher Sylvain <chris.sylvain@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 8 insertions, 2 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 52f5ce4ca8ba..e87bdbfbcc75 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -17,6 +17,12 @@ are specified on the kernel command line with the module name plus
 
         usbcore.blinkenlights=1
 
+Hyphens (dashes) and underscores are equivalent in parameter names, so
+        log_buf_len=1M print-fatal-signals=1
+can also be entered as
+        log-buf-len=1M print_fatal_signals=1
+
+
 This document may not be entirely up to date and comprehensive. The command
 "modinfo -p ${modulename}" shows a current list of all parameters of a loadable
 module. Loadable modules, after being loaded into the running kernel, also
@@ -345,7 +351,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         not play well with APC CPU idle - disable it if you have
                         APC and your system crashes randomly.
 
-        apic=           [APIC,i386] Advanced Programmable Interrupt Controller
+        apic=           [APIC,X86-32] Advanced Programmable Interrupt Controller
                         Change the output verbosity whilst booting
                         Format: { quiet (default) | verbose | debug }
                         Change the amount of debugging information output
@@ -702,7 +708,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         to discrete, to make X server driver able to add WB
                         entry later. This parameter enables that.
 
-        enable_timer_pin_1 [i386,x86-64]
+        enable_timer_pin_1 [X86]
                         Enable PIN 1 of APIC timer
                         Can be useful to work around chipset bugs
                         (in particular on some ATI chipsets).