[PATCH] libata-core: support wildcard matching in ata_blacklist_entry

[David Milburn <dmilburn@redhat.com>]

Support the use of '*' in model_num and model_rev entries
in ata_device_blacklist[].

CC: alan@lxorguk.ukuu.org.uk
Signed-off-by: David Milburn <dmilburn@redhat.com>
---

 drivers/ata/libata-core.c |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 60e78be..1c9c208 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3806,10 +3806,17 @@ static unsigned long ata_dev_blacklisted(const struct ata_device *dev)
 	ata_id_c_string(dev->id, model_rev, ATA_ID_FW_REV, sizeof(model_rev));
 
 	while (ad->model_num) {
-		if (!strcmp(ad->model_num, model_num)) {
+		char *wc;
+		wc = strchr(ad->model_num, '*');
+		if (!strncmp(ad->model_num, model_num, 
+			     wc ? wc - ad->model_num : 
+			     strlen(ad->model_num))) {
 			if (ad->model_rev == NULL)
 				return ad->horkage;
-			if (!strcmp(ad->model_rev, model_rev))
+			wc = strchr(ad->model_rev, '*');
+			if (!strncmp(ad->model_rev, model_rev,
+				     wc ? wc - ad->model_rev : 
+				     strlen(ad->model_rev)))
 				return ad->horkage;
 		}
 		ad++;