linux-kernel - [PATCH] libata.h: reorganize ata

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Message-ID: <20080429215015.GA25220@havoc.gtf.org>
Date:	Tue, 29 Apr 2008 17:50:15 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	linux-ide@...r.kernel.org
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] libata.h: reorganize ata_device a bit


commit f7e989301b6c232dec5489e94ee7741c85cb11ba
Author: Jeff Garzik <jeff@...zik.org>
Date:   Tue Apr 29 17:47:34 2008 -0400

    [libata] linux/libata.h: reorganize ata_device struct members a bit
    
    Put the big stuff at the end, to prepare for upcoming changes (and
    also hopefully achieve nicer packing of remaining members).
    
    Signed-off-by: Jeff Garzik <jgarzik@...hat.com>

 include/linux/libata.h |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

f7e989301b6c232dec5489e94ee7741c85cb11ba
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 395a523..d1dfe87 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -548,11 +548,6 @@ struct ata_device {
 	u64			n_sectors;	/* size of device, if ATA */
 	unsigned int		class;		/* ATA_DEV_xxx */
 
-	union {
-		u16		id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */
-		u32		gscr[SATA_PMP_GSCR_DWORDS]; /* PMP GSCR block */
-	};
-
 	u8			pio_mode;
 	u8			dma_mode;
 	u8			xfer_mode;
@@ -574,8 +569,13 @@ struct ata_device {
 	u16			sectors;	/* Number of sectors per track */
 
 	/* error history */
-	struct ata_ering	ering;
 	int			spdn_cnt;
+	struct ata_ering	ering;
+
+	union {
+		u16		id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */
+		u32		gscr[SATA_PMP_GSCR_DWORDS]; /* PMP GSCR block */
+	};
 };
 
 /* Offset into struct ata_device.  Fields above it are maintained
--
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