BUS_DMA_ISA unused, planning on removing

[M. Warner Losh]

Greetings,

It appears that BUS_DMA_ISA is unused:

find . -name \*.c -o -name \*.h | xargs egrep BUS_DMA_ISA
./ia64/isa/isa_dma.c:                          /*flags*/BUS_DMA_ISA,
./sys/bus_dma.h:#define BUS_DMA_ISA             0x400   /* map memory for AXP ISA dma */

I talked to Marcel, and he's cool with removing it.  Can anybody see a
reason not to GC this?

Warner
-------------- next part --------------
Index: ia64/isa/isa_dma.c
===================================================================
RCS file: /pe/ncvs/src/sys/ia64/isa/isa_dma.c,v
retrieving revision 1.10
diff -u -r1.10 isa_dma.c
--- ia64/isa/isa_dma.c	9 Jul 2007 04:58:16 -0000	1.10
+++ ia64/isa/isa_dma.c	14 Mar 2008 16:17:39 -0000
@@ -106,7 +106,7 @@
 			       /*filter*/NULL, /*filterarg*/NULL,
 			       /*maxsize*/bouncebufsize,
 			       /*nsegments*/1, /*maxsegz*/0x3ffff,
-			       /*flags*/BUS_DMA_ISA,
+			       /*flags*/0,
 			       /*lockfunc*/busdma_lock_mutex,
 			       /*lockarg*/&Giant,
 			       &dma_tag[chan]) != 0) {
Index: sys/bus_dma.h
===================================================================
RCS file: /pe/ncvs/src/sys/sys/bus_dma.h,v
retrieving revision 1.30
diff -u -r1.30 bus_dma.h
--- sys/bus_dma.h	3 Sep 2006 00:26:17 -0000	1.30
+++ sys/bus_dma.h	14 Mar 2008 16:17:17 -0000
@@ -101,7 +101,6 @@
  */
 #define	BUS_DMA_NOWRITE		0x100
 #define	BUS_DMA_NOCACHE		0x200
-#define	BUS_DMA_ISA		0x400	/* map memory for AXP ISA dma */
 
 /* Forwards needed by prototypes below. */
 struct mbuf;