[PATCH v2 02/46] ata: Switch to attribute groups

Bart Van Assche
2021-10-07T21:19:07Z

drivers/ata/ahci.h | 8 +++---
drivers/ata/ata_piix.c | 15 ++++++++---
drivers/ata/libahci.c | 52 ++++++++++++++++++++++++++-------------
drivers/ata/libata-sata.c | 19 ++++++++++----
drivers/ata/libata-scsi.c | 15 ++++++++---
drivers/ata/pata_macio.c | 2 +-
drivers/ata/sata_mv.c | 2 +-
drivers/ata/sata_nv.c | 4 +--
drivers/ata/sata_sil24.c | 2 +-
include/linux/libata.h | 8 +++---
10 files changed, 86 insertions(+), 41 deletions(-)

diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index 2e89499bd9c3..ef77b6551382 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -376,8 +376,8 @@ struct ahci_host_priv {

extern int ahci_ignore_sss;

-extern struct device_attribute *ahci_shost_attrs[];
-extern struct device_attribute *ahci_sdev_attrs[];
+extern const struct attribute_group *ahci_shost_attr_groups[];
+extern const struct attribute_group *ahci_sdev_attr_groups[];

/*
* This must be instantiated by the edge drivers. Read the comments
@@ -388,8 +388,8 @@ extern struct device_attribute *ahci_sdev_attrs[];
.can_queue = AHCI_MAX_CMDS, \
.sg_tablesize = AHCI_MAX_SG, \
.dma_boundary = AHCI_DMA_BOUNDARY, \
- .shost_attrs = ahci_shost_attrs, \
- .sdev_attrs = ahci_sdev_attrs, \
+ .shost_groups = ahci_shost_attr_groups, \
+ .sdev_groups = ahci_sdev_attr_groups, \
.change_queue_depth = ata_scsi_change_queue_depth, \
.tag_alloc_policy = BLK_TAG_ALLOC_RR, \
.slave_configure = ata_scsi_slave_config
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 3ca7720e7d8f..f845cee501e8 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -1085,14 +1085,23 @@ static struct ata_port_operations ich_pata_ops = {
.set_dmamode = ich_set_dmamode,
};

-static struct device_attribute *piix_sidpr_shost_attrs[] = {
- &dev_attr_link_power_management_policy,
+static struct attribute *piix_sidpr_shost_attrs[] = {
+ &dev_attr_link_power_management_policy.attr,
+ NULL
+};
+
+static const struct attribute_group piix_sidpr_shost_attr_group = {
+ .attrs = piix_sidpr_shost_attrs
+};
+
+static const struct attribute_group *piix_sidpr_shost_groups[] = {
+ &piix_sidpr_shost_attr_group,
NULL
};

static struct scsi_host_template piix_sidpr_sht = {
ATA_BMDMA_SHT(DRV_NAME),
- .shost_attrs = piix_sidpr_shost_attrs,
+ .shost_groups = piix_sidpr_shost_groups,
};

static struct ata_port_operations piix_sidpr_sata_ops = {
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 5b3fa2cbe722..ebf990944054 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -108,28 +108,46 @@ static DEVICE_ATTR(em_buffer, S_IWUSR | S_IRUGO,
ahci_read_em_buffer, ahci_store_em_buffer);
static DEVICE_ATTR(em_message_supported, S_IRUGO, ahci_show_em_supported, NULL);

-struct device_attribute *ahci_shost_attrs[] = {
- &dev_attr_link_power_management_policy,
- &dev_attr_em_message_type,
- &dev_attr_em_message,
- &dev_attr_ahci_host_caps,
- &dev_attr_ahci_host_cap2,
- &dev_attr_ahci_host_version,
- &dev_attr_ahci_port_cmd,
- &dev_attr_em_buffer,
- &dev_attr_em_message_supported,
+static struct attribute *ahci_shost_attrs[] = {
+ &dev_attr_link_power_management_policy.attr,
+ &dev_attr_em_message_type.attr,
+ &dev_attr_em_message.attr,
+ &dev_attr_ahci_host_caps.attr,
+ &dev_attr_ahci_host_cap2.attr,
+ &dev_attr_ahci_host_version.attr,
+ &dev_attr_ahci_port_cmd.attr,
+ &dev_attr_em_buffer.attr,
+ &dev_attr_em_message_supported.attr,
NULL
};
-EXPORT_SYMBOL_GPL(ahci_shost_attrs);

-struct device_attribute *ahci_sdev_attrs[] = {
- &dev_attr_sw_activity,
- &dev_attr_unload_heads,
- &dev_attr_ncq_prio_supported,
- &dev_attr_ncq_prio_enable,
+static const struct attribute_group ahci_shost_attr_group = {
+ .attrs = ahci_shost_attrs
+};
+
+const struct attribute_group *ahci_shost_attr_groups[] = {
+ &ahci_shost_attr_group,
+ NULL
+};
+EXPORT_SYMBOL_GPL(ahci_shost_attr_groups);
+
+struct attribute *ahci_sdev_attrs[] = {
+ &dev_attr_sw_activity.attr,
+ &dev_attr_unload_heads.attr,
+ &dev_attr_ncq_prio_supported.attr,
+ &dev_attr_ncq_prio_enable.attr,
+ NULL
+};
+
+static const struct attribute_group ahci_sdev_attr_group = {
+ .attrs = ahci_sdev_attrs
+};
+
+const struct attribute_group *ahci_sdev_attr_groups[] = {
+ &ahci_sdev_attr_group,
NULL
};
-EXPORT_SYMBOL_GPL(ahci_sdev_attrs);
+EXPORT_SYMBOL_GPL(ahci_sdev_attr_groups);

struct ata_port_operations ahci_ops = {
.inherits = &sata_pmp_port_ops,
diff --git a/drivers/ata/libata-sata.c b/drivers/ata/libata-sata.c
index 8f3ff830ab0c..0d332b40ec42 100644
--- a/drivers/ata/libata-sata.c
+++ b/drivers/ata/libata-sata.c
@@ -922,13 +922,22 @@ DEVICE_ATTR(ncq_prio_enable, S_IRUGO | S_IWUSR,
ata_ncq_prio_enable_show, ata_ncq_prio_enable_store);
EXPORT_SYMBOL_GPL(dev_attr_ncq_prio_enable);

-struct device_attribute *ata_ncq_sdev_attrs[] = {
- &dev_attr_unload_heads,
- &dev_attr_ncq_prio_enable,
- &dev_attr_ncq_prio_supported,
+struct attribute *ata_ncq_sdev_attrs[] = {
+ &dev_attr_unload_heads.attr,
+ &dev_attr_ncq_prio_enable.attr,
+ &dev_attr_ncq_prio_supported.attr,
NULL
};
-EXPORT_SYMBOL_GPL(ata_ncq_sdev_attrs);
+
+static const struct attribute_group ata_ncq_sdev_attr_group = {
+ .attrs = ata_ncq_sdev_attrs
+};
+
+const struct attribute_group *ata_ncq_sdev_attr_groups[] = {
+ &ata_ncq_sdev_attr_group,
+ NULL
+};
+EXPORT_SYMBOL_GPL(ata_ncq_sdev_attr_groups);

static ssize_t
ata_scsi_em_message_store(struct device *dev, struct device_attribute *attr,
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 1fb4611f7eeb..84c696960f4c 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -234,11 +234,20 @@ static void ata_scsi_set_invalid_parameter(struct ata_device *dev,
field, 0xff, 0);
}

-struct device_attribute *ata_common_sdev_attrs[] = {
- &dev_attr_unload_heads,
+static struct attribute *ata_common_sdev_attrs[] = {
+ &dev_attr_unload_heads.attr,
NULL
};
-EXPORT_SYMBOL_GPL(ata_common_sdev_attrs);
+
+static const struct attribute_group ata_common_sdev_attr_group = {
+ .attrs = ata_common_sdev_attrs
+};
+
+const struct attribute_group *ata_common_sdev_attr_groups[] = {
+ &ata_common_sdev_attr_group,
+ NULL
+};
+EXPORT_SYMBOL_GPL(ata_common_sdev_attr_groups);

/**
* ata_std_bios_param - generic bios head/sector/cylinder calculator used by sd.
diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c
index be0ca8d5b345..a7a6a26175fe 100644
--- a/drivers/ata/pata_macio.c
+++ b/drivers/ata/pata_macio.c
@@ -923,7 +923,7 @@ static struct scsi_host_template pata_macio_sht = {
*/
.max_segment_size = MAX_DBDMA_SEG,
.slave_configure = pata_macio_slave_config,
- .sdev_attrs = ata_common_sdev_attrs,
+ .sdev_groups = ata_common_sdev_attr_groups,
.can_queue = ATA_DEF_QUEUE,
.tag_alloc_policy = BLK_TAG_ALLOC_RR,
};
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 9d86203e1e7a..35a97b7c2791 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -670,7 +670,7 @@ static struct scsi_host_template mv6_sht = {
.can_queue = MV_MAX_Q_DEPTH - 1,
.sg_tablesize = MV_MAX_SG_CT / 2,
.dma_boundary = MV_DMA_BOUNDARY,
- .sdev_attrs = ata_ncq_sdev_attrs,
+ .sdev_groups = ata_ncq_sdev_attr_groups,
.change_queue_depth = ata_scsi_change_queue_depth,
.tag_alloc_policy = BLK_TAG_ALLOC_RR,
.slave_configure = ata_scsi_slave_config
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index c385d18ce87b..7ff1a2f30cea 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -380,7 +380,7 @@ static struct scsi_host_template nv_adma_sht = {
.sg_tablesize = NV_ADMA_SGTBL_TOTAL_LEN,
.dma_boundary = NV_ADMA_DMA_BOUNDARY,
.slave_configure = nv_adma_slave_config,
- .sdev_attrs = ata_ncq_sdev_attrs,
+ .sdev_groups = ata_ncq_sdev_attr_groups,
.change_queue_depth = ata_scsi_change_queue_depth,
.tag_alloc_policy = BLK_TAG_ALLOC_RR,
};
@@ -391,7 +391,7 @@ static struct scsi_host_template nv_swncq_sht = {
.sg_tablesize = LIBATA_MAX_PRD,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = nv_swncq_slave_config,
- .sdev_attrs = ata_ncq_sdev_attrs,
+ .sdev_groups = ata_ncq_sdev_attr_groups,
.change_queue_depth = ata_scsi_change_queue_depth,
.tag_alloc_policy = BLK_TAG_ALLOC_RR,
};
diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c
index 06a1e27c4f84..ada0dbb9f703 100644
--- a/drivers/ata/sata_sil24.c
+++ b/drivers/ata/sata_sil24.c
@@ -379,7 +379,7 @@ static struct scsi_host_template sil24_sht = {
.sg_tablesize = SIL24_MAX_SGE,
.dma_boundary = ATA_DMA_BOUNDARY,
.tag_alloc_policy = BLK_TAG_ALLOC_FIFO,
- .sdev_attrs = ata_ncq_sdev_attrs,
+ .sdev_groups = ata_ncq_sdev_attr_groups,
.change_queue_depth = ata_scsi_change_queue_depth,
.slave_configure = ata_scsi_slave_config
};
diff --git a/include/linux/libata.h b/include/linux/libata.h
index c0c64f03e107..6df8d0034d77 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -1388,7 +1388,7 @@ extern int ata_link_nr_enabled(struct ata_link *link);
*/
extern const struct ata_port_operations ata_base_port_ops;
extern const struct ata_port_operations sata_port_ops;
-extern struct device_attribute *ata_common_sdev_attrs[];
+extern const struct attribute_group *ata_common_sdev_attr_groups[];

/*
* All sht initializers (BASE, PIO, BMDMA, NCQ) must be instantiated
@@ -1418,14 +1418,14 @@ extern struct device_attribute *ata_common_sdev_attrs[];

#define ATA_BASE_SHT(drv_name) \
ATA_SUBBASE_SHT(drv_name), \
- .sdev_attrs = ata_common_sdev_attrs
+ .sdev_groups = ata_common_sdev_attr_groups

#ifdef CONFIG_SATA_HOST
-extern struct device_attribute *ata_ncq_sdev_attrs[];
+extern const struct attribute_group *ata_ncq_sdev_attr_groups[];

#define ATA_NCQ_SHT(drv_name) \
ATA_SUBBASE_SHT(drv_name), \
- .sdev_attrs = ata_ncq_sdev_attrs, \
+ .sdev_groups = ata_ncq_sdev_attr_groups, \
.change_queue_depth = ata_scsi_change_queue_depth
#endif