linux-kernel - Bug in /drivers/scsi/3w-9xxx.h

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Message-ID: <491de4ae-0ba3-0fce-a400-3ebb41e21ac4@mni.thm.de>
Date:   Tue, 28 Aug 2018 14:23:20 +0200
From:   Frank Kammer <frank.kammer@....thm.de>
To:     linux-kernel@...r.kernel.org
Subject: Bug in /drivers/scsi/3w-9xxx.h

Hello,

I have a 3ware 9650SE RAID-Controller with 20 LUNs. Using an unpachted
kernel (no matter which version, e.g., 4.12.14) , only 17 LUNs are shown.

The problem is that the driver was once written for a 3ware 9550SE
RAID-Controlle that supports only 16 LUNs.
There are some changes in driver to allow 32 LUNs, but one change is
forgotten: 

In drivers/scsi/3w-9xxx.h, one must replace the following:

467c467
< #define TW_MAX_LUNS(srl) (srl < TW_FW_SRL_LUNS_SUPPORTED ? 1 : 16)
---
> #define TW_MAX_LUNS(srl) (srl < TW_FW_SRL_LUNS_SUPPORTED ? 1 : 32)

Best regards,
Frank Kammer