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x86: only compile floppy driver if CONFIG_ISA_DMA_API is enabled 

The generic floppy disk driver utilizies the interface provided by
CONFIG_ISA_DMA_API, specifically claim_dma_lock(), release_dma_lock(),
request_dma(), and free_dma().  Thus, there's a strict dependency on the
config option and the driver should only be loaded if the kernel supports
ISA-style DMA.

Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Rientjes 2011-03-22 16:34:58 -07:00 committed by Linus Torvalds
parent 4061d68e1a
commit 8df3bd9e18
1 changed files with 1 additions and 1 deletions
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arch/x86/Kconfig
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@ -143,7 +143,7 @@ config GENERIC_GPIO
bool bool
config ARCH_MAY_HAVE_PC_FDC config ARCH_MAY_HAVE_PC_FDC
def_bool y def_bool ISA_DMA_API
config RWSEM_GENERIC_SPINLOCK config RWSEM_GENERIC_SPINLOCK
def_bool !X86_XADD def_bool !X86_XADD