diff options
author | Alan Stern | 2008-05-01 15:35:18 -0400 |
---|---|---|
committer | Greg Kroah-Hartman | 2008-07-21 15:15:53 -0700 |
commit | 7e4d6c387994294ac8198b624ee71e75de60dfd2 (patch) | |
tree | 09c8c519a6284f79c38f49347eb7fdf44d8de13e /drivers/usb/storage/scsiglue.c | |
parent | 2742fd8899328345d97a3443fb787b051b79ebae (diff) |
usb-storage: separate dynamic flags from fixed flags
This patch (as1089) separates out the dynamic atomic bitflags and the
static bitfields in usb-storage. Until now the two sorts of flags
have been sharing the same word; this has always been awkward.
To help prevent possible confusion, the two new fields each have a
different name from the original. us->fflags contains the fixed
bitfields (mostly taken from the USB ID table in unusual_devs.h), and
us->dflags contains the dynamic atomic bitflags (used with set_bit,
test_bit, and so on).
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/storage/scsiglue.c')
-rw-r--r-- | drivers/usb/storage/scsiglue.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index 3fcde9f0fa5f..1caf3f7af349 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -116,10 +116,10 @@ static int slave_configure(struct scsi_device *sdev) * while others have trouble with more than 64K. At this time we * are limiting both to 32K (64 sectores). */ - if (us->flags & (US_FL_MAX_SECTORS_64 | US_FL_MAX_SECTORS_MIN)) { + if (us->fflags & (US_FL_MAX_SECTORS_64 | US_FL_MAX_SECTORS_MIN)) { unsigned int max_sectors = 64; - if (us->flags & US_FL_MAX_SECTORS_MIN) + if (us->fflags & US_FL_MAX_SECTORS_MIN) max_sectors = PAGE_CACHE_SIZE >> 9; if (sdev->request_queue->max_sectors > max_sectors) blk_queue_max_sectors(sdev->request_queue, @@ -148,7 +148,7 @@ static int slave_configure(struct scsi_device *sdev) * majority of devices work fine, but a few still can't * handle it. The sd driver will simply assume those * devices are write-enabled. */ - if (us->flags & US_FL_NO_WP_DETECT) + if (us->fflags & US_FL_NO_WP_DETECT) sdev->skip_ms_page_3f = 1; /* A number of devices have problems with MODE SENSE for @@ -158,13 +158,13 @@ static int slave_configure(struct scsi_device *sdev) /* Some disks return the total number of blocks in response * to READ CAPACITY rather than the highest block number. * If this device makes that mistake, tell the sd driver. */ - if (us->flags & US_FL_FIX_CAPACITY) + if (us->fflags & US_FL_FIX_CAPACITY) sdev->fix_capacity = 1; /* A few disks have two indistinguishable version, one of * which reports the correct capacity and the other does not. * The sd driver has to guess which is the case. */ - if (us->flags & US_FL_CAPACITY_HEURISTICS) + if (us->fflags & US_FL_CAPACITY_HEURISTICS) sdev->guess_capacity = 1; /* Some devices report a SCSI revision level above 2 but are @@ -213,7 +213,7 @@ static int slave_configure(struct scsi_device *sdev) /* Some devices choke when they receive a PREVENT-ALLOW MEDIUM * REMOVAL command, so suppress those commands. */ - if (us->flags & US_FL_NOT_LOCKABLE) + if (us->fflags & US_FL_NOT_LOCKABLE) sdev->lockable = 0; /* this is to satisfy the compiler, tho I don't think the @@ -238,7 +238,7 @@ static int queuecommand(struct scsi_cmnd *srb, } /* fail the command if we are disconnecting */ - if (test_bit(US_FLIDX_DISCONNECTING, &us->flags)) { + if (test_bit(US_FLIDX_DISCONNECTING, &us->dflags)) { US_DEBUGP("Fail command during disconnect\n"); srb->result = DID_NO_CONNECT << 16; done(srb); @@ -280,9 +280,9 @@ static int command_abort(struct scsi_cmnd *srb) * with the reset). Note that we must retain the host lock while * calling usb_stor_stop_transport(); otherwise it might interfere * with an auto-reset that begins as soon as we release the lock. */ - set_bit(US_FLIDX_TIMED_OUT, &us->flags); - if (!test_bit(US_FLIDX_RESETTING, &us->flags)) { - set_bit(US_FLIDX_ABORTING, &us->flags); + set_bit(US_FLIDX_TIMED_OUT, &us->dflags); + if (!test_bit(US_FLIDX_RESETTING, &us->dflags)) { + set_bit(US_FLIDX_ABORTING, &us->dflags); usb_stor_stop_transport(us); } scsi_unlock(us_to_host(us)); @@ -329,7 +329,7 @@ void usb_stor_report_device_reset(struct us_data *us) struct Scsi_Host *host = us_to_host(us); scsi_report_device_reset(host, 0, 0); - if (us->flags & US_FL_SCM_MULT_TARG) { + if (us->fflags & US_FL_SCM_MULT_TARG) { for (i = 1; i < host->max_id; ++i) scsi_report_device_reset(host, 0, i); } @@ -400,7 +400,7 @@ static int proc_info (struct Scsi_Host *host, char *buffer, pos += sprintf(pos, " Quirks:"); #define US_FLAG(name, value) \ - if (us->flags & value) pos += sprintf(pos, " " #name); + if (us->fflags & value) pos += sprintf(pos, " " #name); US_DO_ALL_FLAGS #undef US_FLAG |