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    Subject[PATCH 2/3] ide: preparations for /proc/ide/hd*/settings rework
    After rework settings will be no longer created dynamically
    for each device so we need to make some fixups first.

    * Use set_[ksettings,unmaskirq]() as a set function for
    ["keepsettings","unmaskirq"] setting.

    * Allow writes to ["io_32bit","unmaskirq"] settings also when
    drive->no_[io_32bit,unmask] is set (this is checked later inside
    set_[io_32bit,unmaskirq]() anywyay and keeps consistency with
    the corresponding HDIO_SET_[32BIT,UNMASKINTR] ioctls).

    * Use max possible multi sectors value (16) as an allowed max for
    "multcount" setting. set_multcount() set function checks against
    device's max possbile value anyway and it makes the proc setting
    consistent with the corresponding HDIO_SET_MULTCOUNT ioctl.

    Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
    ---
    drivers/ide/ide-disk.c | 3 +--
    drivers/ide/ide-proc.c | 6 +++---
    drivers/ide/ide.c | 4 ++--
    include/linux/ide.h | 2 ++
    4 files changed, 8 insertions(+), 7 deletions(-)

    Index: b/drivers/ide/ide-disk.c
    ===================================================================
    --- a/drivers/ide/ide-disk.c
    +++ b/drivers/ide/ide-disk.c
    @@ -767,8 +767,7 @@ static void idedisk_add_settings(ide_dri
    &drive->bios_sect, NULL);
    ide_add_setting(drive, "address", SETTING_RW, TYPE_BYTE, 0, 2, 1, 1,
    &drive->addressing, set_lba_addressing);
    - ide_add_setting(drive, "multcount", SETTING_RW, TYPE_BYTE, 0,
    - drive->id[ATA_ID_MAX_MULTSECT] & 0xff, 1, 1,
    + ide_add_setting(drive, "multcount", SETTING_RW, TYPE_BYTE, 0, 16, 1, 1,
    &drive->mult_count, set_multcount);
    ide_add_setting(drive, "nowerr", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1,
    &drive->nowerr, set_nowerr);
    Index: b/drivers/ide/ide-proc.c
    ===================================================================
    --- a/drivers/ide/ide-proc.c
    +++ b/drivers/ide/ide-proc.c
    @@ -368,11 +368,11 @@ void ide_add_generic_settings (ide_drive
    /*
    * drive setting name read/write access data type min max mul_factor div_factor data pointer set function
    */
    - __ide_add_setting(drive, "io_32bit", drive->no_io_32bit ? SETTING_READ : SETTING_RW, TYPE_BYTE, 0, 1 + (SUPPORT_VLB_SYNC << 1), 1, 1, &drive->io_32bit, set_io_32bit, 0);
    - __ide_add_setting(drive, "keepsettings", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1, &drive->keep_settings, NULL, 0);
    + __ide_add_setting(drive, "io_32bit", SETTING_RW, TYPE_BYTE, 0, 1 + (SUPPORT_VLB_SYNC << 1), 1, 1, &drive->io_32bit, set_io_32bit, 0);
    + __ide_add_setting(drive, "keepsettings", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1, &drive->keep_settings, set_ksettings, 0);
    __ide_add_setting(drive, "nice1", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1, &drive->nice1, NULL, 0);
    __ide_add_setting(drive, "pio_mode", SETTING_WRITE, TYPE_BYTE, 0, 255, 1, 1, NULL, set_pio_mode, 0);
    - __ide_add_setting(drive, "unmaskirq", drive->no_unmask ? SETTING_READ : SETTING_RW, TYPE_BYTE, 0, 1, 1, 1, &drive->unmask, NULL, 0);
    + __ide_add_setting(drive, "unmaskirq", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1, &drive->unmask, set_unmaskirq, 0);
    __ide_add_setting(drive, "using_dma", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1, &drive->using_dma, set_using_dma, 0);
    __ide_add_setting(drive, "init_speed", SETTING_RW, TYPE_BYTE, 0, 70, 1, 1, &drive->init_speed, NULL, 0);
    __ide_add_setting(drive, "current_speed", SETTING_RW, TYPE_BYTE, 0, 70, 1, 1, &drive->current_speed, set_xfer_rate, 0);
    Index: b/drivers/ide/ide.c
    ===================================================================
    --- a/drivers/ide/ide.c
    +++ b/drivers/ide/ide.c
    @@ -305,7 +305,7 @@ int set_io_32bit(ide_drive_t *drive, int
    return 0;
    }

    -static int set_ksettings(ide_drive_t *drive, int arg)
    +int set_ksettings(ide_drive_t *drive, int arg)
    {
    if (arg < 0 || arg > 1)
    return -EINVAL;
    @@ -394,7 +394,7 @@ int set_pio_mode(ide_drive_t *drive, int
    return 0;
    }

    -static int set_unmaskirq(ide_drive_t *drive, int arg)
    +int set_unmaskirq(ide_drive_t *drive, int arg)
    {
    if (drive->no_unmask)
    return -EPERM;
    Index: b/include/linux/ide.h
    ===================================================================
    --- a/include/linux/ide.h
    +++ b/include/linux/ide.h
    @@ -697,7 +697,9 @@ typedef struct ide_driver_s ide_driver_t
    extern struct mutex ide_setting_mtx;

    int set_io_32bit(ide_drive_t *, int);
    +int set_ksettings(ide_drive_t *, int);
    int set_pio_mode(ide_drive_t *, int);
    +int set_unmaskirq(ide_drive_t *, int);
    int set_using_dma(ide_drive_t *, int);

    /* ATAPI packet command flags */

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