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authorArnd Bergmann <arnd@arndb.de>2013-04-25 19:29:04 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-04-25 10:58:00 -0700
commit8097804eab55d2dcfadfc821bceeb0faad978ab3 (patch)
tree18c95d6f486749a23d905442802a61e2f28830d4 /lib/show_mem.c
parentc3c683ead3c53c0eb67b72c54e130baf45ac25d2 (diff)
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USB: OHCI: avoid conflicting platform drivers
Like the EHCI driver, OHCI supports a large number of different platform glue drivers by directly including them, which causes problems with conflicting macro definitions in some cases. As more ARM architecture specific back-ends are required to coexist in a single build, we should split those out into separate drivers. Unfortunately, the infrastructure for that is still under development, so to give us more time, this uses a separate *_PLATFORM_DRIVER macro for each ARM specific OHCI backend, just like we already do on PowerPC and some of the other ARM platforms. In linux-3.10, only the SPEAr and CNS3xxx back-ends would actually conflict without this patch, but over time we would get more of them, so this is a way to avoid having to patch the driver every time it breaks. We should still split out all back-ends into separate loadable modules, but that work is only needed to improve code size and cleanliness after this patch, not for correctness. While we're here, this fixes the incorrectly sorted error path for the OMAP1 and OMAP3 backends to ensure we always unregister the exact set of drivers that were registered before erroring out. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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