In preparation for moving owner module reference field from struct
scsi_host_template to struct Scsi_Host, this converts the following
functions into macros so that LLDDs can pass THIS_MODULE to
scsi_host_alloc() through them instead of scsi_host_template->module.
ata_host_alloc()
ata_host_alloc_pinfo()
ata_pci_sff_prepare_host()
ata_pci_sff_init_one()
ata_pci_bmdma_prepare_host()
ata_pci_bmdma_init_one()
Signed-off-by: Akinobu Mita <akinobu.m...@gmail.com>
Cc: Hans de Goede <hdego...@redhat.com>
Cc: Tejun Heo <t...@kernel.org>
Cc: Christoph Hellwig <h...@lst.de>
Cc: "James E.J. Bottomley" <jbottom...@parallels.com>
Cc: linux-...@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
---
drivers/ata/libata-core.c | 22 ++++++++++-------
drivers/ata/libata-sff.c | 61 +++++++++++++++++++++++++----------------------
include/linux/libata.h | 52 ++++++++++++++++++++++++++++------------
3 files changed, 83 insertions(+), 52 deletions(-)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 5c84fb5..a3cc0e3 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -5700,9 +5700,10 @@ static void ata_host_release(struct device *gendev, void
*res)
}
/**
- * ata_host_alloc - allocate and init basic ATA host resources
+ * __ata_host_alloc - allocate and init basic ATA host resources
* @dev: generic device this host is associated with
* @max_ports: maximum number of ATA ports associated with this host
+ * @owner: module which will be the owner of the ATA host
*
* Allocate and initialize basic ATA host resources. LLD calls
* this function to allocate a host, initializes it fully and
@@ -5719,7 +5720,8 @@ static void ata_host_release(struct device *gendev, void
*res)
* LOCKING:
* Inherited from calling layer (may sleep).
*/
-struct ata_host *ata_host_alloc(struct device *dev, int max_ports)
+struct ata_host *__ata_host_alloc(struct device *dev, int max_ports,
+ struct module *owner)
{
struct ata_host *host;
size_t sz;
@@ -5744,6 +5746,7 @@ struct ata_host *ata_host_alloc(struct device *dev, int
max_ports)
mutex_init(&host->eh_mutex);
host->dev = dev;
host->n_ports = max_ports;
+ host->module = owner;
/* allocate ports bound to this host */
for (i = 0; i < max_ports; i++) {
@@ -5766,10 +5769,11 @@ struct ata_host *ata_host_alloc(struct device *dev, int
max_ports)
}
/**
- * ata_host_alloc_pinfo - alloc host and init with port_info array
+ * __ata_host_alloc_pinfo - alloc host and init with port_info array
* @dev: generic device this host is associated with
* @ppi: array of ATA port_info to initialize host with
* @n_ports: number of ATA ports attached to this host
+ * @owner: module which will be the owner of the ATA host
*
* Allocate ATA host and initialize with info from @ppi. If NULL
* terminated, @ppi may contain fewer entries than @n_ports. The
@@ -5781,15 +5785,15 @@ struct ata_host *ata_host_alloc(struct device *dev, int
max_ports)
* LOCKING:
* Inherited from calling layer (may sleep).
*/
-struct ata_host *ata_host_alloc_pinfo(struct device *dev,
- const struct ata_port_info * const * ppi,
- int n_ports)
+struct ata_host *__ata_host_alloc_pinfo(struct device *dev,
+ const struct ata_port_info * const *ppi,
+ int n_ports, struct module *owner)
{
const struct ata_port_info *pi;
struct ata_host *host;
int i, j;
- host = ata_host_alloc(dev, n_ports);
+ host = __ata_host_alloc(dev, n_ports, owner);
if (!host)
return NULL;
@@ -6862,8 +6866,8 @@ EXPORT_SYMBOL_GPL(ata_dev_next);
EXPORT_SYMBOL_GPL(ata_std_bios_param);
EXPORT_SYMBOL_GPL(ata_scsi_unlock_native_capacity);
EXPORT_SYMBOL_GPL(ata_host_init);
-EXPORT_SYMBOL_GPL(ata_host_alloc);
-EXPORT_SYMBOL_GPL(ata_host_alloc_pinfo);
+EXPORT_SYMBOL_GPL(__ata_host_alloc);
+EXPORT_SYMBOL_GPL(__ata_host_alloc_pinfo);
EXPORT_SYMBOL_GPL(ata_slave_link_init);
EXPORT_SYMBOL_GPL(ata_host_start);
EXPORT_SYMBOL_GPL(ata_host_register);
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index db90aa3..323c9d8 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -2349,10 +2349,11 @@ int ata_pci_sff_init_host(struct ata_host *host)
EXPORT_SYMBOL_GPL(ata_pci_sff_init_host);
/**
- * ata_pci_sff_prepare_host - helper to prepare PCI PIO-only SFF ATA host
+ * __ata_pci_sff_prepare_host - helper to prepare PCI PIO-only SFF ATA host
* @pdev: target PCI device
* @ppi: array of port_info, must be enough for two ports
* @r_host: out argument for the initialized ATA host
+ * @owner: module which will be the owner of the ATA host
*
* Helper to allocate PIO-only SFF ATA host for @pdev, acquire
* all PCI resources and initialize it accordingly in one go.
@@ -2363,9 +2364,9 @@ EXPORT_SYMBOL_GPL(ata_pci_sff_init_host);
* RETURNS:
* 0 on success, -errno otherwise.
*/
-int ata_pci_sff_prepare_host(struct pci_dev *pdev,
- const struct ata_port_info * const *ppi,
- struct ata_host **r_host)
+int __ata_pci_sff_prepare_host(struct pci_dev *pdev,
+ const struct ata_port_info * const *ppi,
+ struct ata_host **r_host, struct module *owner)
{
struct ata_host *host;
int rc;
@@ -2373,7 +2374,7 @@ int ata_pci_sff_prepare_host(struct pci_dev *pdev,
if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL))
return -ENOMEM;
- host = ata_host_alloc_pinfo(&pdev->dev, ppi, 2);
+ host = __ata_host_alloc_pinfo(&pdev->dev, ppi, 2, owner);
if (!host) {
dev_err(&pdev->dev, "failed to allocate ATA host\n");
rc = -ENOMEM;
@@ -2392,7 +2393,7 @@ err_out:
devres_release_group(&pdev->dev, NULL);
return rc;
}
-EXPORT_SYMBOL_GPL(ata_pci_sff_prepare_host);
+EXPORT_SYMBOL_GPL(__ata_pci_sff_prepare_host);
/**
* ata_pci_sff_activate_host - start SFF host, request IRQ and register it
@@ -2500,7 +2501,7 @@ static const struct ata_port_info *ata_sff_find_valid_pi(
static int ata_pci_init_one(struct pci_dev *pdev,
const struct ata_port_info * const *ppi,
struct scsi_host_template *sht, void *host_priv,
- int hflags, bool bmdma)
+ int hflags, bool bmdma, struct module *owner)
{
struct device *dev = &pdev->dev;
const struct ata_port_info *pi;
@@ -2525,11 +2526,11 @@ static int ata_pci_init_one(struct pci_dev *pdev,
#ifdef CONFIG_ATA_BMDMA
if (bmdma)
/* prepare and activate BMDMA host */
- rc = ata_pci_bmdma_prepare_host(pdev, ppi, &host);
+ rc = __ata_pci_bmdma_prepare_host(pdev, ppi, &host, owner);
else
#endif
/* prepare and activate SFF host */
- rc = ata_pci_sff_prepare_host(pdev, ppi, &host);
+ rc = __ata_pci_sff_prepare_host(pdev, ppi, &host, owner);
if (rc)
goto out;
host->private_data = host_priv;
@@ -2552,12 +2553,13 @@ out:
}
/**
- * ata_pci_sff_init_one - Initialize/register PIO-only PCI IDE controller
+ * __ata_pci_sff_init_one - Initialize/register PIO-only PCI IDE controller
* @pdev: Controller to be initialized
* @ppi: array of port_info, must be enough for two ports
* @sht: scsi_host_template to use when registering the host
* @host_priv: host private_data
* @hflag: host flags
+ * @owner: module which will be the owner of the ATA host
*
* This is a helper function which can be called from a driver's
* xxx_init_one() probe function if the hardware uses traditional
@@ -2573,13 +2575,14 @@ out:
* RETURNS:
* Zero on success, negative on errno-based value on error.
*/
-int ata_pci_sff_init_one(struct pci_dev *pdev,
- const struct ata_port_info * const *ppi,
- struct scsi_host_template *sht, void *host_priv, int hflag)
+int __ata_pci_sff_init_one(struct pci_dev *pdev,
+ const struct ata_port_info * const *ppi,
+ struct scsi_host_template *sht, void *host_priv,
+ int hflag, struct module *owner)
{
- return ata_pci_init_one(pdev, ppi, sht, host_priv, hflag, 0);
+ return ata_pci_init_one(pdev, ppi, sht, host_priv, hflag, 0, owner);
}
-EXPORT_SYMBOL_GPL(ata_pci_sff_init_one);
+EXPORT_SYMBOL_GPL(__ata_pci_sff_init_one);
#endif /* CONFIG_PCI */
@@ -3245,10 +3248,11 @@ void ata_pci_bmdma_init(struct ata_host *host)
EXPORT_SYMBOL_GPL(ata_pci_bmdma_init);
/**
- * ata_pci_bmdma_prepare_host - helper to prepare PCI BMDMA ATA host
+ * __ata_pci_bmdma_prepare_host - helper to prepare PCI BMDMA ATA host
* @pdev: target PCI device
* @ppi: array of port_info, must be enough for two ports
* @r_host: out argument for the initialized ATA host
+ * @owner: module which will be the owner of the ATA host
*
* Helper to allocate BMDMA ATA host for @pdev, acquire all PCI
* resources and initialize it accordingly in one go.
@@ -3259,28 +3263,29 @@ EXPORT_SYMBOL_GPL(ata_pci_bmdma_init);
* RETURNS:
* 0 on success, -errno otherwise.
*/
-int ata_pci_bmdma_prepare_host(struct pci_dev *pdev,
- const struct ata_port_info * const * ppi,
- struct ata_host **r_host)
+int __ata_pci_bmdma_prepare_host(struct pci_dev *pdev,
+ const struct ata_port_info * const *ppi,
+ struct ata_host **r_host, struct module *owner)
{
int rc;
- rc = ata_pci_sff_prepare_host(pdev, ppi, r_host);
+ rc = __ata_pci_sff_prepare_host(pdev, ppi, r_host, owner);
if (rc)
return rc;
ata_pci_bmdma_init(*r_host);
return 0;
}
-EXPORT_SYMBOL_GPL(ata_pci_bmdma_prepare_host);
+EXPORT_SYMBOL_GPL(__ata_pci_bmdma_prepare_host);
/**
- * ata_pci_bmdma_init_one - Initialize/register BMDMA PCI IDE controller
+ * __ata_pci_bmdma_init_one - Initialize/register BMDMA PCI IDE controller
* @pdev: Controller to be initialized
* @ppi: array of port_info, must be enough for two ports
* @sht: scsi_host_template to use when registering the host
* @host_priv: host private_data
* @hflags: host flags
+ * @owner: module which will be the owner of the ATA host
*
* This function is similar to ata_pci_sff_init_one() but also
* takes care of BMDMA initialization.
@@ -3291,14 +3296,14 @@ EXPORT_SYMBOL_GPL(ata_pci_bmdma_prepare_host);
* RETURNS:
* Zero on success, negative on errno-based value on error.
*/
-int ata_pci_bmdma_init_one(struct pci_dev *pdev,
- const struct ata_port_info * const * ppi,
- struct scsi_host_template *sht, void *host_priv,
- int hflags)
+int __ata_pci_bmdma_init_one(struct pci_dev *pdev,
+ const struct ata_port_info * const *ppi,
+ struct scsi_host_template *sht, void *host_priv,
+ int hflags, struct module *owner)
{
- return ata_pci_init_one(pdev, ppi, sht, host_priv, hflags, 1);
+ return ata_pci_init_one(pdev, ppi, sht, host_priv, hflags, 1, owner);
}
-EXPORT_SYMBOL_GPL(ata_pci_bmdma_init_one);
+EXPORT_SYMBOL_GPL(__ata_pci_bmdma_init_one);
#endif /* CONFIG_PCI */
#endif /* CONFIG_ATA_BMDMA */
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 2d18241..541ceb1 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -598,6 +598,7 @@ struct ata_host {
void *private_data;
struct ata_port_operations *ops;
unsigned long flags;
+ struct module *module;
struct mutex eh_mutex;
struct task_struct *eh_owner;
@@ -1106,9 +1107,15 @@ extern int sata_std_hardreset(struct ata_link *link,
unsigned int *class,
unsigned long deadline);
extern void ata_std_postreset(struct ata_link *link, unsigned int *classes);
-extern struct ata_host *ata_host_alloc(struct device *dev, int max_ports);
-extern struct ata_host *ata_host_alloc_pinfo(struct device *dev,
- const struct ata_port_info * const * ppi, int n_ports);
+extern struct ata_host *__ata_host_alloc(struct device *dev, int max_ports,
+ struct module *owner);
+#define ata_host_alloc(dev, max_ports) \
+ __ata_host_alloc(dev, max_ports, THIS_MODULE)
+extern struct ata_host *__ata_host_alloc_pinfo(struct device *dev,
+ const struct ata_port_info * const *ppi, int n_ports,
+ struct module *owner);
+#define ata_host_alloc_pinfo(dev, ppi, n_ports) \
+ __ata_host_alloc_pinfo(dev, ppi, n_ports, THIS_MODULE)
extern int ata_slave_link_init(struct ata_port *ap);
extern int ata_host_start(struct ata_host *host);
extern int ata_host_register(struct ata_host *host,
@@ -1835,15 +1842,22 @@ extern void ata_sff_error_handler(struct ata_port *ap);
extern void ata_sff_std_ports(struct ata_ioports *ioaddr);
#ifdef CONFIG_PCI
extern int ata_pci_sff_init_host(struct ata_host *host);
-extern int ata_pci_sff_prepare_host(struct pci_dev *pdev,
- const struct ata_port_info * const * ppi,
- struct ata_host **r_host);
+extern int __ata_pci_sff_prepare_host(struct pci_dev *pdev,
+ const struct ata_port_info * const *ppi,
+ struct ata_host **r_host,
+ struct module *owner);
+#define ata_pci_sff_prepare_host(pdev, ppi, r_host) \
+ __ata_pci_sff_prepare_host(pdev, ppi, r_host, THIS_MODULE)
extern int ata_pci_sff_activate_host(struct ata_host *host,
irq_handler_t irq_handler,
struct scsi_host_template *sht);
-extern int ata_pci_sff_init_one(struct pci_dev *pdev,
+extern int __ata_pci_sff_init_one(struct pci_dev *pdev,
const struct ata_port_info * const * ppi,
- struct scsi_host_template *sht, void *host_priv, int hflags);
+ struct scsi_host_template *sht, void *host_priv, int hflags,
+ struct module *owner);
+#define ata_pci_sff_init_one(pdev, ppi, sht, host_priv, hflag) \
+ __ata_pci_sff_init_one(pdev, ppi, sht, host_priv, hflag, THIS_MODULE)
+
#endif /* CONFIG_PCI */
#ifdef CONFIG_ATA_BMDMA
@@ -1874,13 +1888,21 @@ extern int ata_bmdma_port_start32(struct ata_port *ap);
#ifdef CONFIG_PCI
extern int ata_pci_bmdma_clear_simplex(struct pci_dev *pdev);
extern void ata_pci_bmdma_init(struct ata_host *host);
-extern int ata_pci_bmdma_prepare_host(struct pci_dev *pdev,
- const struct ata_port_info * const * ppi,
- struct ata_host **r_host);
-extern int ata_pci_bmdma_init_one(struct pci_dev *pdev,
- const struct ata_port_info * const * ppi,
- struct scsi_host_template *sht,
- void *host_priv, int hflags);
+extern int __ata_pci_bmdma_prepare_host(struct pci_dev *pdev,
+ const struct ata_port_info * const *ppi,
+ struct ata_host **r_host,
+ struct module *owner);
+#define ata_pci_bmdma_prepare_host(pdev, ppi, r_host) \
+ __ata_pci_bmdma_prepare_host(pdev, ppi, r_host, THIS_MODULE)
+
+extern int __ata_pci_bmdma_init_one(struct pci_dev *pdev,
+ const struct ata_port_info * const *ppi,
+ struct scsi_host_template *sht,
+ void *host_priv, int hflags,
+ struct module *owner);
+#define ata_pci_bmdma_init_one(pdev, ppi, sht, host_priv, hflags) \
+ __ata_pci_bmdma_init_one(pdev, ppi, sht, host_priv, hflags, THIS_MODULE)
+
#endif /* CONFIG_PCI */
#endif /* CONFIG_ATA_BMDMA */
--
1.9.1
--
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