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libata: const-ification bombing run

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Enforce access rules where appropriate.

If the compiler is smart enough, this may buy us an optimization or two
as a side effect.
This commit is contained in:
Jeff Garzik
2005-10-22 14:27:05 -04:00
parent cf482935c6
commit 057ace5e79
20 changed files with 93 additions and 93 deletions
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32
include/linux/libata.h
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@ -202,7 +202,7 @@ struct ata_ioports {
struct ata_probe_ent {
struct list_head node;
struct device *dev;
struct ata_port_operations *port_ops;
const struct ata_port_operations *port_ops;
Scsi_Host_Template *sht;
struct ata_ioports port[ATA_MAX_PORTS];
unsigned int n_ports;
@ -225,7 +225,7 @@ struct ata_host_set {
void __iomem *mmio_base;
unsigned int n_ports;
void *private_data;
struct ata_port_operations *ops;
const struct ata_port_operations *ops;
struct ata_port * ports[0];
};
@ -294,7 +294,7 @@ struct ata_device {
struct ata_port {
struct Scsi_Host *host; /* our co-allocated scsi host */
struct ata_port_operations *ops;
const struct ata_port_operations *ops;
unsigned long flags; /* ATA_FLAG_xxx */
unsigned int id; /* unique id req'd by scsi midlyr */
unsigned int port_no; /* unique port #; from zero */
@ -341,10 +341,10 @@ struct ata_port_operations {
void (*set_piomode) (struct ata_port *, struct ata_device *);
void (*set_dmamode) (struct ata_port *, struct ata_device *);
void (*tf_load) (struct ata_port *ap, struct ata_taskfile *tf);
void (*tf_load) (struct ata_port *ap, const struct ata_taskfile *tf);
void (*tf_read) (struct ata_port *ap, struct ata_taskfile *tf);
void (*exec_command)(struct ata_port *ap, struct ata_taskfile *tf);
void (*exec_command)(struct ata_port *ap, const struct ata_taskfile *tf);
u8 (*check_status)(struct ata_port *ap);
u8 (*check_altstatus)(struct ata_port *ap);
u8 (*check_err)(struct ata_port *ap);
@ -385,7 +385,7 @@ struct ata_port_info {
unsigned long pio_mask;
unsigned long mwdma_mask;
unsigned long udma_mask;
struct ata_port_operations *port_ops;
const struct ata_port_operations *port_ops;
};
struct ata_timing {
@ -413,7 +413,7 @@ extern int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_i
unsigned int n_ports);
extern void ata_pci_remove_one (struct pci_dev *pdev);
#endif /* CONFIG_PCI */
extern int ata_device_add(struct ata_probe_ent *ent);
extern int ata_device_add(const struct ata_probe_ent *ent);
extern void ata_host_set_remove(struct ata_host_set *host_set);
extern int ata_scsi_detect(Scsi_Host_Template *sht);
extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg);
@ -426,16 +426,16 @@ extern int ata_ratelimit(void);
/*
* Default driver ops implementations
*/
extern void ata_tf_load(struct ata_port *ap, struct ata_taskfile *tf);
extern void ata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf);
extern void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf);
extern void ata_tf_to_fis(struct ata_taskfile *tf, u8 *fis, u8 pmp);
extern void ata_tf_from_fis(u8 *fis, struct ata_taskfile *tf);
extern void ata_tf_to_fis(const struct ata_taskfile *tf, u8 *fis, u8 pmp);
extern void ata_tf_from_fis(const u8 *fis, struct ata_taskfile *tf);
extern void ata_noop_dev_select (struct ata_port *ap, unsigned int device);
extern void ata_std_dev_select (struct ata_port *ap, unsigned int device);
extern u8 ata_check_status(struct ata_port *ap);
extern u8 ata_altstatus(struct ata_port *ap);
extern u8 ata_chk_err(struct ata_port *ap);
extern void ata_exec_command(struct ata_port *ap, struct ata_taskfile *tf);
extern void ata_exec_command(struct ata_port *ap, const struct ata_taskfile *tf);
extern int ata_port_start (struct ata_port *ap);
extern void ata_port_stop (struct ata_port *ap);
extern void ata_host_stop (struct ata_host_set *host_set);
@ -446,8 +446,8 @@ extern void ata_sg_init_one(struct ata_queued_cmd *qc, void *buf,
unsigned int buflen);
extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg,
unsigned int n_elem);
extern unsigned int ata_dev_classify(struct ata_taskfile *tf);
extern void ata_dev_id_string(u16 *id, unsigned char *s,
extern unsigned int ata_dev_classify(const struct ata_taskfile *tf);
extern void ata_dev_id_string(const u16 *id, unsigned char *s,
unsigned int ofs, unsigned int len);
extern void ata_dev_config(struct ata_port *ap, unsigned int i);
extern void ata_bmdma_setup (struct ata_queued_cmd *qc);
@ -502,7 +502,7 @@ struct pci_bits {
extern void ata_pci_host_stop (struct ata_host_set *host_set);
extern struct ata_probe_ent *
ata_pci_init_native_mode(struct pci_dev *pdev, struct ata_port_info **port, int portmask);
extern int pci_test_config_bits(struct pci_dev *pdev, struct pci_bits *bits);
extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits);
#endif /* CONFIG_PCI */
@ -512,7 +512,7 @@ static inline unsigned int ata_tag_valid(unsigned int tag)
return (tag < ATA_MAX_QUEUE) ? 1 : 0;
}
static inline unsigned int ata_dev_present(struct ata_device *dev)
static inline unsigned int ata_dev_present(const struct ata_device *dev)
{
return ((dev->class == ATA_DEV_ATA) ||
(dev->class == ATA_DEV_ATAPI));
@ -711,7 +711,7 @@ static inline unsigned int sata_dev_present(struct ata_port *ap)
return ((scr_read(ap, SCR_STATUS) & 0xf) == 0x3) ? 1 : 0;
}
static inline int ata_try_flush_cache(struct ata_device *dev)
static inline int ata_try_flush_cache(const struct ata_device *dev)
{
return ata_id_wcache_enabled(dev->id) ||
ata_id_has_flush(dev->id) ||