[dm-devel] [PATCH 06/10] scsi_dh: Do not allow arguments for hardware handlers
Chandra Seetharaman
sekharan at us.ibm.com
Thu May 1 21:50:17 UTC 2008
Subject: [PATCH 06/10] scsi_dh: Do not allow arguments for hardware handlers
From: Chandra Seetharaman <sekharan at us.ibm.com>
The new implementation does not use the arguments provided with the
hardware handler. This patch makes the change visible to the user by
failing table load when arguments are provided with the hardware handler.
Signed-off-by: Chandra Seetharaman <sekharan at us.ibm.com>
---
Index: linux-2.6.25/drivers/md/dm-mpath.c
===================================================================
--- linux-2.6.25.orig/drivers/md/dm-mpath.c
+++ linux-2.6.25/drivers/md/dm-mpath.c
@@ -653,11 +653,15 @@ static int parse_hw_handler(struct arg_s
struct dm_target *ti = m->ti;
static struct param _params[] = {
- {0, 1024, "invalid number of hardware handler args"},
+ {0, 1, "invalid number of hardware handler args"},
};
- if (read_param(_params, shift(as), &hw_argc, &ti->error))
+ if (read_param(_params, shift(as), &hw_argc, &ti->error)) {
+ if (hw_argc > 1)
+ ti->error = "no arguments accepted for hardware"
+ " handler";
return -EINVAL;
+ }
if (!hw_argc)
return 0;
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