[S390] cio: change confusing message in cmf.

cmf currently prints a message that more than 4096 channels are not
allowed in basic mode - however, this can only be enforced if cmf was
a module (which is no longer possible). It makes much more sense to
not check the specified number of channels and just print a message if
the block for basic mode could not be allocated (which may happen for
any number of specified channels).

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 3 insertions, 7 deletions

diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c
index 02fd00b55e1b..34a796913b06 100644
--- a/drivers/s390/cio/cmf.c
+++ b/drivers/s390/cio/cmf.c
@@ -594,6 +594,9 @@ alloc_cmb (struct ccw_device *cdev)
                         free_pages((unsigned long)mem, get_order(size));
                 } else if (!mem) {
                         /* no luck */
+                        printk(KERN_WARNING "cio: failed to allocate area "
+                               "for measuring %d subchannels\n",
+                               cmb_area.num_channels);
                         ret = -ENOMEM;
                         goto out;
                 } else {
@@ -1279,13 +1282,6 @@ init_cmf(void)
         case CMF_BASIC:
                 format_string = "basic";
                 cmbops = &cmbops_basic;
-                if (cmb_area.num_channels > 4096 || cmb_area.num_channels < 1) {
-                        printk(KERN_ERR "cio: Basic channel measurement "
-                               "facility can only use 1 to 4096 devices\n"
-                               KERN_ERR "when the cmf driver is built"
-                               " as a loadable module\n");
-                        return 1;
-                }
                 break;
         case CMF_EXTENDED:
                 format_string = "extended";