[SCSI] imm: no need for unchecked_isa_dma

Relax the lowmem bounce buffer requirement for imm so that any
low memory page will do -- they don't need to be below the
ISA 16 MB limit, just need to be mapped in low memory.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c
index fc0f30ae0f77fc251b48bc70e011c53bc816f3fa..cd2dffdab77a491e46f2e6f8ffafd944bc79b936 100644 (file)
--- a/drivers/scsi/imm.c
+++ b/drivers/scsi/imm.c
@@ -1119,6 +1119,10 @@ static int device_check(imm_struct *dev)
        return -ENODEV;
 }
 
+/*
+ * imm cannot deal with highmem, so this causes all IO pages for this host
+ * to reside in low memory (hence mapped)
+ */
 static int imm_adjust_queue(struct scsi_device *device)
 {
        blk_queue_bounce_limit(device->request_queue, BLK_BOUNCE_HIGH);
@@ -1141,10 +1145,6 @@ static struct scsi_host_template imm_template = {
        .use_clustering         = ENABLE_CLUSTERING,
        .can_queue              = 1,
        .slave_alloc            = imm_adjust_queue,
-       .unchecked_isa_dma      = 1, /* imm cannot deal with highmem, so
-                                     * this is an easy trick to ensure
-                                     * all io pages for this host reside
-                                     * in low memory */
 };
 
 /***************************************************************************