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ata: libata-acpi: kill ata_acpi_on_suspend()

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Since the commit c05e6ff035 ("libata-acpi: implement
and use ata_acpi_init_gtm()") ata_acpi_on_suspend() just returns 0, so
its call from ata_eh_handle_port_suspend() doesn't make sense anymore.
Remove the function completely, at last...

Found by Linux Verification Center (linuxtesting.org) with the SVACE
static analysis tool.

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
This commit is contained in:
Sergey Shtylyov 2022-02-01 23:50:10 +03:00 committed by Damien Le Moal
parent 6e163f9b86
commit 2a7b02ea7f
3 changed files with 1 additions and 29 deletions
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21
drivers/ata/libata-acpi.c
View File

@ -799,27 +799,6 @@ static int ata_acpi_push_id(struct ata_device *dev)
return 0;
}
/**
* ata_acpi_on_suspend - ATA ACPI hook called on suspend
* @ap: target ATA port
*
* This function is called when @ap is about to be suspended. All
* devices are already put to sleep but the port_suspend() callback
* hasn't been executed yet. Error return from this function aborts
* suspend.
*
* LOCKING:
* EH context.
*
* RETURNS:
* 0 on success, -errno on failure.
*/
int ata_acpi_on_suspend(struct ata_port *ap)
{
/* nada */
return 0;
}
/**
* ata_acpi_on_resume - ATA ACPI hook called on resume
* @ap: target ATA port

7
drivers/ata/libata-eh.c
View File

@ -3902,11 +3902,6 @@ static void ata_eh_handle_port_suspend(struct ata_port *ap)
}
}
/* tell ACPI we're suspending */
rc = ata_acpi_on_suspend(ap);
if (rc)
goto out;
/* suspend */
ata_eh_freeze_port(ap);
@ -3914,7 +3909,7 @@ static void ata_eh_handle_port_suspend(struct ata_port *ap)
rc = ap->ops->port_suspend(ap, ap->pm_mesg);
ata_acpi_set_state(ap, ap->pm_mesg);
out:
/* update the flags */
spin_lock_irqsave(ap->lock, flags);

2
drivers/ata/libata.h
View File

@ -107,7 +107,6 @@ static inline void ata_sas_free_tag(unsigned int tag, struct ata_port *ap) { }
#ifdef CONFIG_ATA_ACPI
extern unsigned int ata_acpi_gtf_filter;
extern void ata_acpi_dissociate(struct ata_host *host);
extern int ata_acpi_on_suspend(struct ata_port *ap);
extern void ata_acpi_on_resume(struct ata_port *ap);
extern int ata_acpi_on_devcfg(struct ata_device *dev);
extern void ata_acpi_on_disable(struct ata_device *dev);
@ -117,7 +116,6 @@ extern void ata_acpi_bind_dev(struct ata_device *dev);
extern acpi_handle ata_dev_acpi_handle(struct ata_device *dev);
#else
static inline void ata_acpi_dissociate(struct ata_host *host) { }
static inline int ata_acpi_on_suspend(struct ata_port *ap) { return 0; }
static inline void ata_acpi_on_resume(struct ata_port *ap) { }
static inline int ata_acpi_on_devcfg(struct ata_device *dev) { return 0; }
static inline void ata_acpi_on_disable(struct ata_device *dev) { }