docs: fb: Remove framebuffer scrollback boot option

In commit 50145474f6ef ("fbcon: remove soft scrollback code"), the
framebuffer scrollback mode was removed, but the documentation was not
updated.  Properly update the documentation by removing the option that
is no longer present, and update the section numbering because of the
removal.

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/436cc046a8ff9cf2a467b633527db77dc7c7de19.1600333774.git.unixbhaskar@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

diff --git a/Documentation/fb/fbcon.rst b/Documentation/fb/fbcon.rst
index e57a3d1d085ad6e5dc0c43cc582456e2eec56c36..328f6980698c622b17f150f391d457afb2788d20 100644 (file)
--- a/Documentation/fb/fbcon.rst
+++ b/Documentation/fb/fbcon.rst
@@ -87,15 +87,8 @@ C. Boot options
        Note, not all drivers can handle font with widths not divisible by 8,
        such as vga16fb.
 
-2. fbcon=scrollback:<value>[k]
 
-       The scrollback buffer is memory that is used to preserve display
-       contents that has already scrolled past your view.  This is accessed
-       by using the Shift-PageUp key combination.  The value 'value' is any
-       integer. It defaults to 32KB.  The 'k' suffix is optional, and will
-       multiply the 'value' by 1024.
-
-3. fbcon=map:<0123>
+2. fbcon=map:<0123>
 
        This is an interesting option. It tells which driver gets mapped to
        which console. The value '0123' is a sequence that gets repeated until
@@ -116,7 +109,7 @@ C. Boot options
        Later on, when you want to map the console the to the framebuffer
        device, you can use the con2fbmap utility.
 
-4. fbcon=vc:<n1>-<n2>
+3. fbcon=vc:<n1>-<n2>
 
        This option tells fbcon to take over only a range of consoles as
        specified by the values 'n1' and 'n2'. The rest of the consoles
@@ -127,7 +120,7 @@ C. Boot options
        is typically located on the same video card.  Thus, the consoles that
        are controlled by the VGA console will be garbled.
 
-5. fbcon=rotate:<n>
+4. fbcon=rotate:<n>
 
        This option changes the orientation angle of the console display. The
        value 'n' accepts the following:
@@ -152,21 +145,21 @@ C. Boot options
        Actually, the underlying fb driver is totally ignorant of console
        rotation.
 
-6. fbcon=margin:<color>
+5. fbcon=margin:<color>
 
        This option specifies the color of the margins. The margins are the
        leftover area at the right and the bottom of the screen that are not
        used by text. By default, this area will be black. The 'color' value
        is an integer number that depends on the framebuffer driver being used.
 
-7. fbcon=nodefer
+6. fbcon=nodefer
 
        If the kernel is compiled with deferred fbcon takeover support, normally
        the framebuffer contents, left in place by the firmware/bootloader, will
        be preserved until there actually is some text is output to the console.
        This option causes fbcon to bind immediately to the fbdev device.
 
-8. fbcon=logo-pos:<location>
+7. fbcon=logo-pos:<location>
 
        The only possible 'location' is 'center' (without quotes), and when
        given, the bootup logo is moved from the default top-left corner
@@ -174,7 +167,7 @@ C. Boot options
        displayed due to multiple CPUs, the collected line of logos is moved
        as a whole.
 
-9. fbcon=logo-count:<n>
+8. fbcon=logo-count:<n>
 
        The value 'n' overrides the number of bootup logos. 0 disables the
        logo, and -1 gives the default which is the number of online CPUs.