linux-kernel - Re: [PATCH] SCSI driver for VMware's virtual HBA

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Date:	Tue, 08 Sep 2009 18:26:36 -0700
From:	Daniel Walker <dwalker@...o99.com>
To:	akataria@...are.com
Cc:	James Bottomley <James.Bottomley@...e.de>,
	Rolf Eike Beer <eike-kernel@...tec.de>,
	Brian King <brking@...ux.vnet.ibm.com>,
	"Chetan.Loke@...lex.Com" <Chetan.Loke@...lex.Com>,
	Matthew Wilcox <matthew@....cx>,
	Roland Dreier <rdreier@...co.com>,
	Bart Van Assche <bvanassche@....org>,
	Robert Love <robert.w.love@...el.com>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	Mike Christie <michaelc@...wisc.edu>,
	"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	pv-drivers@...are.com
Subject: Re: [PATCH] SCSI driver for VMware's virtual HBA - V4.

On Tue, 2009-09-08 at 18:15 -0700, Alok Kataria wrote:
> +typedef struct PVSCSIRingCmpDesc {
> +       u64     context;
> +       u64     dataLen;
> +       u32     senseLen;
> +       u16     hostStatus;
> +       u16     scsiStatus;
> +       u32     _pad[2];
> +} __packed PVSCSIRingCmpDesc;


I get a lot of checkpatch warnings due to the typedefs here.. They are
usually frowned upon, and it really does make you code look alien ..

> +#define PVSCSI_MEM_SPACE_COMMAND_PAGE          0
> +#define PVSCSI_MEM_SPACE_INTR_STATUS_PAGE      1
> +#define PVSCSI_MEM_SPACE_MISC_PAGE             2
> +#define PVSCSI_MEM_SPACE_KICK_IO_PAGE          4
> +#define PVSCSI_MEM_SPACE_MSIX_TABLE_PAGE       6
> +#define PVSCSI_MEM_SPACE_MSIX_PBA_PAGE         7

Why not use an enum for the above? Your using enums in the rest of your
code..

Daniel

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