diff options
| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-04-28 13:06:16 +0900 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2009-04-28 08:14:52 +0200 |
| commit | 8a11a789c39cd6f61de4243234cf44a46c23ffd0 (patch) | |
| tree | ec88d32cffdf40bf13c3f83ad4220e4205666e3f | |
| parent | a03bb5a32fff4aa23f081a3cff7e98d4084104cd (diff) | |
| download | linux-8a11a789c39cd6f61de4243234cf44a46c23ffd0.tar.gz linux-8a11a789c39cd6f61de4243234cf44a46c23ffd0.tar.bz2 linux-8a11a789c39cd6f61de4243234cf44a46c23ffd0.zip | |
mg_disk: fix dependency on libata
Add local copies of ata_id_string() and ata_id_c_string() to mg_disk
so there is no need for the driver to depend on ATA and SCSI.
[ Impact: break dependency on libata by copying ata id string functions ]
Cc: unsik Kim <donari75@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| -rw-r--r-- | drivers/block/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/block/mg_disk.c | 44 |
2 files changed, 41 insertions, 5 deletions
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index ddea8e485cc9..f42fa50d3550 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -412,7 +412,7 @@ config ATA_OVER_ETH config MG_DISK tristate "mGine mflash, gflash support" - depends on ARM && ATA && GPIOLIB + depends on ARM && GPIOLIB help mGine mFlash(gFlash) block device driver diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c index 1a4cc968cfee..8e53cae9fa90 100644 --- a/drivers/block/mg_disk.c +++ b/drivers/block/mg_disk.c @@ -17,7 +17,7 @@ #include <linux/fs.h> #include <linux/blkdev.h> #include <linux/hdreg.h> -#include <linux/libata.h> +#include <linux/ata.h> #include <linux/interrupt.h> #include <linux/delay.h> #include <linux/platform_device.h> @@ -357,6 +357,42 @@ static irqreturn_t mg_irq(int irq, void *dev_id) return IRQ_HANDLED; } +/* local copy of ata_id_string() */ +static void mg_id_string(const u16 *id, unsigned char *s, + unsigned int ofs, unsigned int len) +{ + unsigned int c; + + BUG_ON(len & 1); + + while (len > 0) { + c = id[ofs] >> 8; + *s = c; + s++; + + c = id[ofs] & 0xff; + *s = c; + s++; + + ofs++; + len -= 2; + } +} + +/* local copy of ata_id_c_string() */ +static void mg_id_c_string(const u16 *id, unsigned char *s, + unsigned int ofs, unsigned int len) +{ + unsigned char *p; + + mg_id_string(id, s, ofs, len - 1); + + p = s + strnlen(s, len - 1); + while (p > s && p[-1] == ' ') + p--; + *p = '\0'; +} + static int mg_get_disk_id(struct mg_host *host) { u32 i; @@ -403,9 +439,9 @@ static int mg_get_disk_id(struct mg_host *host) host->n_sectors -= host->nres_sectors; } - ata_id_c_string(id, fwrev, ATA_ID_FW_REV, sizeof(fwrev)); - ata_id_c_string(id, model, ATA_ID_PROD, sizeof(model)); - ata_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial)); + mg_id_c_string(id, fwrev, ATA_ID_FW_REV, sizeof(fwrev)); + mg_id_c_string(id, model, ATA_ID_PROD, sizeof(model)); + mg_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial)); printk(KERN_INFO "mg_disk: model: %s\n", model); printk(KERN_INFO "mg_disk: firm: %.8s\n", fwrev); printk(KERN_INFO "mg_disk: serial: %s\n", serial); |