[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, 5 insertions, 0 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index fbf4b2a62b60..5c795193ebba 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -29,6 +29,10 @@ config MMU
         bool
         default y
 
+config NO_IOPORT
+        bool
+        default n
+
 config EISA
         bool
         ---help---
@@ -298,6 +302,7 @@ config ARCH_RPC
         select TIMER_ACORN
         select ARCH_MAY_HAVE_PC_FDC
         select ISA_DMA_API
+        select NO_IOPORT
         help
           On the Acorn Risc-PC, Linux can support the internal IDE disk and
           CD-ROM interface, serial and parallel port, and the floppy drive.