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Philipp Zabel acbef7b766 modpost: fix module autoloading for OF devices with generic compatible property 
Since the wildcard at the end of OF module aliases is gone, autoloading
of modules that don't match a device's last (most generic) compatible
value fails.

For example the CODA960 VPU on i.MX6Q has the SoC specific compatible
"fsl,imx6q-vpu" and the generic compatible "cnm,coda960".  Since the
driver currently only works with knowledge about the SoC specific
integration, it doesn't list "cnm,cod960" in the module device table.

This results in the device compatible
"of:NvpuT<NULL>Cfsl,imx6q-vpuCcnm,coda960" not matching the module alias
"of:N*T*Cfsl,imx6q-vpu" anymore, whereas before commit 2f632369ab
("modpost: don't add a trailing wildcard for OF module aliases") it
matched the module alias "of:N*T*Cfsl,imx6q-vpu*".

This patch adds two module aliases for each compatible, one without the
wildcard and one with "C*" appended.

  $ modinfo coda | grep imx6q
  alias:          of:N*T*Cfsl,imx6q-vpuC*
  alias:          of:N*T*Cfsl,imx6q-vpu

Fixes: 2f632369ab ("modpost: don't add a trailing wildcard for OF module aliases")
Link: http://lkml.kernel.org/r/1462203339-15340-1-git-send-email-p.zabel@pengutronix.de
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Javier Martinez Canillas <javier@osg.samsung.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <stable@vger.kernel.org>	[4.5+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-05 17:38:53 -07:00
..
.gitignore kbuild: trivial - remove trailing empty lines 2014-06-10 00:04:06 +02:00
devicetable-offsets.c sound updates for 4.4-rc1 2015-11-06 11:04:07 -08:00
empty.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
file2alias.c modpost: fix module autoloading for OF devices with generic compatible property 2016-05-05 17:38:53 -07:00
Makefile objtool: Mark non-standard object files and directories 2016-02-29 08:35:02 +01:00
mk_elfconfig.c kbuild: trivial - remove trailing empty lines 2014-06-10 00:04:06 +02:00
modpost.c powerpc: Simplify module TOC handling 2016-01-21 14:10:56 +11:00
modpost.h Avoid conflict with host definitions when cross-compiling 2015-08-20 14:55:54 +02:00
sumversion.c kbuild: trivial - use tabs for code indent where possible 2014-06-10 14:00:53 +02:00