From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 20/63] ide-cd: remove needless zeroing of 'info' fields from ide_cdrom_setup()
Date: Thu, 20 Dec 2007 02:08:20 +0100 [thread overview]
Message-ID: <200712200208.20568.bzolnier@gmail.com> (raw)
ide_cd_probe() zeroes 'info' prior to calling ide_cdrom_setup() so there
is no need to explicitly zero 'info' fields in the latter function.
Ditto for fields of CDROM_STATE_FLAGS(), CDROM_CONFIG_FLAGS() and 'cdi'
(all are embedded in 'info').
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
-254 bytes
drivers/ide/ide-cd.c | 44 +++++++-------------------------------------
1 file changed, 7 insertions(+), 37 deletions(-)
Index: b/drivers/ide/ide-cd.c
===================================================================
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -2844,30 +2844,16 @@ int ide_cdrom_setup (ide_drive_t *drive)
drive->special.all = 0;
CDROM_STATE_FLAGS(drive)->media_changed = 1;
- CDROM_STATE_FLAGS(drive)->toc_valid = 0;
- CDROM_STATE_FLAGS(drive)->door_locked = 0;
#if NO_DOOR_LOCKING
CDROM_CONFIG_FLAGS(drive)->no_doorlock = 1;
-#else
- CDROM_CONFIG_FLAGS(drive)->no_doorlock = 0;
#endif
-
- CDROM_CONFIG_FLAGS(drive)->drq_interrupt = ((drive->id->config & 0x0060) == 0x20);
- CDROM_CONFIG_FLAGS(drive)->is_changer = 0;
- CDROM_CONFIG_FLAGS(drive)->cd_r = 0;
- CDROM_CONFIG_FLAGS(drive)->cd_rw = 0;
- CDROM_CONFIG_FLAGS(drive)->test_write = 0;
- CDROM_CONFIG_FLAGS(drive)->dvd = 0;
- CDROM_CONFIG_FLAGS(drive)->dvd_r = 0;
- CDROM_CONFIG_FLAGS(drive)->dvd_ram = 0;
+ if ((drive->id->config & 0x0060) == 0x20)
+ CDROM_CONFIG_FLAGS(drive)->drq_interrupt = 1;
CDROM_CONFIG_FLAGS(drive)->no_eject = 1;
- CDROM_CONFIG_FLAGS(drive)->supp_disc_present = 0;
- CDROM_CONFIG_FLAGS(drive)->audio_play = 0;
CDROM_CONFIG_FLAGS(drive)->close_tray = 1;
-
+
/* limit transfer size per interrupt. */
- CDROM_CONFIG_FLAGS(drive)->limit_nframes = 0;
/* a testament to the nice quality of Samsung drives... */
if (!strcmp(drive->id->model, "SAMSUNG CD-ROM SCR-2430"))
CDROM_CONFIG_FLAGS(drive)->limit_nframes = 1;
@@ -2878,16 +2864,6 @@ int ide_cdrom_setup (ide_drive_t *drive)
CDROM_CONFIG_FLAGS(drive)->no_speed_select = 1;
#if ! STANDARD_ATAPI
- /* by default Sanyo 3 CD changer support is turned off and
- ATAPI Rev 2.2+ standard support for CD changers is used */
- cdi->sanyo_slot = 0;
-
- CDROM_CONFIG_FLAGS(drive)->nec260 = 0;
- CDROM_CONFIG_FLAGS(drive)->toctracks_as_bcd = 0;
- CDROM_CONFIG_FLAGS(drive)->tocaddr_as_bcd = 0;
- CDROM_CONFIG_FLAGS(drive)->playmsf_as_bcd = 0;
- CDROM_CONFIG_FLAGS(drive)->subchan_as_bcd = 0;
-
if (strcmp (drive->id->model, "V003S0DS") == 0 &&
drive->id->fw_rev[4] == '1' &&
drive->id->fw_rev[6] <= '2') {
@@ -2921,8 +2897,10 @@ int ide_cdrom_setup (ide_drive_t *drive)
CDROM_CONFIG_FLAGS(drive)->playmsf_as_bcd = 1;
CDROM_CONFIG_FLAGS(drive)->subchan_as_bcd = 1;
}
- /* Sanyo 3 CD changer uses a non-standard command
- for CD changing */
+ /*
+ * Sanyo 3 CD changer uses a non-standard command for CD changing
+ * (by default standard ATAPI support for CD changers is used).
+ */
else if ((strcmp(drive->id->model, "CD-ROM CDR-C3 G") == 0) ||
(strcmp(drive->id->model, "CD-ROM CDR-C3G") == 0) ||
(strcmp(drive->id->model, "CD-ROM CDR_C36") == 0)) {
@@ -2931,14 +2909,6 @@ int ide_cdrom_setup (ide_drive_t *drive)
}
#endif /* not STANDARD_ATAPI */
- info->toc = NULL;
- info->buffer = NULL;
- info->sector_buffered = 0;
- info->nsectors_buffered = 0;
- info->changer_info = NULL;
- info->last_block = 0;
- info->start_seek = 0;
-
nslots = ide_cdrom_probe_capabilities (drive);
/*
next reply other threads:[~2007-12-20 1:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-20 1:08 Bartlomiej Zolnierkiewicz [this message]
2007-12-21 12:41 ` [PATCH 20/63] ide-cd: remove needless zeroing of 'info' fields from ide_cdrom_setup() Sergei Shtylyov
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