Hi,
we have a rather old EMC Symmetrix which always has a peripheral
qualifier of 001b on LUN0. This has the problem that the
scsi_probe_and_add_lun code bails out to out_free_result: before we
apply the device flags (that we got from scsi_probe_lun just before this
check) to bflagsp. The result is that (without these flags) we stop
scanning and don't see any devices on the EMC. This patch against 2.6.16
ignores this peripheral qualifier for LUN 0 and the devices get detected
properly:
--- linux-2.6.16.7/drivers/scsi/scsi_scan.c.orig 2006-04-17 23:53:25.000000000 +0200
+++ linux-2.6.16.7/drivers/scsi/scsi_scan.c 2006-04-26 20:12:21.000000000 +0200
@@ -853,7 +862,7 @@
/*
* result contains valid SCSI INQUIRY data.
*/
- if ((result[0] >> 5) == 3) {
+ if ((result[0] >> 5) == 3 && lun != 0) {
/*
* For a Peripheral qualifier 3 (011b), the SCSI
* spec says: The device server is not capable of
Signed-Off-By: Guido Guenther <agx@xxxxxxxxxxx>
Historical note: we always had issues with this machine, we had a
different patch for 2.6.11, discussion about it is here:
http://marc.theaimsgroup.com/?l=linux-scsi&m=110297733824960&w=2
Due to code changes in recent kernels we just need the above now, can
this be applied?
Cheers,
-- Guido
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