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Date:   Wed, 26 Oct 2016 21:42:51 -0400
From:   "Martin K. Petersen" <>
To:     Arnd Bergmann <>
Cc:     "James E.J. Bottomley" <>,
        "Martin K. Petersen" <>,
        Hannes Reinecke <>, Jens Axboe <>,,
Subject: Re: [PATCH] advansys: fix build warning for PCI=n

>>>>> "Arnd" == Arnd Bergmann <> writes:

Arnd> The advansys probe function tries to handle both ISA and PCI
Arnd> cases, each hidden in an #ifdef when unused. This leads to a
Arnd> warning indicating that when PCI is disabled we could be using
Arnd> uninitialized data:

Arnd> drivers/scsi/advansys.c: In function ‘advansys_board_found’:
Arnd> drivers/scsi/advansys.c:11036:5: error: ‘ret’ may be used
Arnd> uninitialized in this function [-Werror=maybe-uninitialized]
Arnd> drivers/scsi/advansys.c:10928:28: note: ‘ret’ was declared here
Arnd> drivers/scsi/advansys.c:11309:8: error: ‘share_irq’ may be used
Arnd> uninitialized in this function [-Werror=maybe-uninitialized]
Arnd> drivers/scsi/advansys.c:10928:6: note: ‘share_irq’ was declared
Arnd> here

Arnd> This cannot happen in practice because the hardware in question
Arnd> only exists for PCI, but changing the code to just error out here
Arnd> is better for consistency and avoids the warning.

Applied to 4.10/scsi-queue.

Martin K. Petersen	Oracle Linux Engineering

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