[PATCH] sort the devres mess out

* Split the implementation-agnostic stuff in separate files.
* Make sure that targets using non-default request_irq() pull
  kernel/irq/devres.o
* Introduce new symbols (HAS_IOPORT and HAS_IOMEM) defaulting to positive;
  allow architectures to turn them off (we needed these symbols anyway for
  dependencies of quite a few drivers).
* protect the ioport-related parts of lib/devres.o with CONFIG_HAS_IOPORT.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index d32a80e6668c..b3a21ba77cd2 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -16,6 +16,9 @@ config MMU
         bool
         default y
 
+config NO_IOMEM
+        def_bool y
+
 mainmenu "Linux/Usermode Kernel Configuration"
 
 config ISA