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    Subject[PATCH] ata: declare ata_port_info structures as const
    Date
    ata_port_info structures are either copied to other objects or their
    references are stored in objects of type const. So, ata_port_info
    structures having similar usage pattern can be made const.

    Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
    ---
    drivers/ata/pata_rdc.c | 2 +-
    drivers/ata/pata_sch.c | 2 +-
    drivers/ata/sata_inic162x.c | 2 +-
    drivers/ata/sata_via.c | 6 +++---
    4 files changed, 6 insertions(+), 6 deletions(-)

    diff --git a/drivers/ata/pata_rdc.c b/drivers/ata/pata_rdc.c
    index 9ce5952..959bb54 100644
    --- a/drivers/ata/pata_rdc.c
    +++ b/drivers/ata/pata_rdc.c
    @@ -292,7 +292,7 @@ static struct ata_port_operations rdc_pata_ops = {
    .prereset = rdc_pata_prereset,
    };

    -static struct ata_port_info rdc_port_info = {
    +static const struct ata_port_info rdc_port_info = {

    .flags = ATA_FLAG_SLAVE_POSS,
    .pio_mask = ATA_PIO4,
    diff --git a/drivers/ata/pata_sch.c b/drivers/ata/pata_sch.c
    index b920c34..1b80a66 100644
    --- a/drivers/ata/pata_sch.c
    +++ b/drivers/ata/pata_sch.c
    @@ -81,7 +81,7 @@ static struct ata_port_operations sch_pata_ops = {
    .set_dmamode = sch_set_dmamode,
    };

    -static struct ata_port_info sch_port_info = {
    +static const struct ata_port_info sch_port_info = {
    .flags = ATA_FLAG_SLAVE_POSS,
    .pio_mask = ATA_PIO4,
    .mwdma_mask = ATA_MWDMA2,
    diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c
    index e81a821..9b6d793 100644
    --- a/drivers/ata/sata_inic162x.c
    +++ b/drivers/ata/sata_inic162x.c
    @@ -737,7 +737,7 @@ static struct ata_port_operations inic_port_ops = {
    .port_start = inic_port_start,
    };

    -static struct ata_port_info inic_port_info = {
    +static const struct ata_port_info inic_port_info = {
    .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
    .pio_mask = ATA_PIO4,
    .mwdma_mask = ATA_MWDMA2,
    diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
    index f3f538e..31a2768 100644
    --- a/drivers/ata/sata_via.c
    +++ b/drivers/ata/sata_via.c
    @@ -166,7 +166,7 @@ static const struct ata_port_info vt6420_port_info = {
    .port_ops = &vt6420_sata_ops,
    };

    -static struct ata_port_info vt6421_sport_info = {
    +static const struct ata_port_info vt6421_sport_info = {
    .flags = ATA_FLAG_SATA,
    .pio_mask = ATA_PIO4,
    .mwdma_mask = ATA_MWDMA2,
    @@ -174,7 +174,7 @@ static struct ata_port_info vt6421_sport_info = {
    .port_ops = &vt6421_sata_ops,
    };

    -static struct ata_port_info vt6421_pport_info = {
    +static const struct ata_port_info vt6421_pport_info = {
    .flags = ATA_FLAG_SLAVE_POSS,
    .pio_mask = ATA_PIO4,
    /* No MWDMA */
    @@ -182,7 +182,7 @@ static struct ata_port_info vt6421_pport_info = {
    .port_ops = &vt6421_pata_ops,
    };

    -static struct ata_port_info vt8251_port_info = {
    +static const struct ata_port_info vt8251_port_info = {
    .flags = ATA_FLAG_SATA | ATA_FLAG_SLAVE_POSS,
    .pio_mask = ATA_PIO4,
    .mwdma_mask = ATA_MWDMA2,
    --
    2.7.4
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