[PATCH] libata: change ata_<foo>_printk routines to return void

From: Joe Perches
Date: Mon Sep 22 2014 - 12:52:26 EST


The return value is not used by callers of these functions nor
by uses of all macros so change the functions to return void.

Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
This change is associated to a desire to eventually
change printk to return void.

drivers/ata/libata-core.c | 35 +++++++++++++----------------------
include/linux/libata.h | 12 ++++++------
2 files changed, 19 insertions(+), 28 deletions(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index f27dc07..b80b160 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -6772,32 +6772,28 @@ const struct ata_port_info ata_dummy_port_info = {
/*
* Utility print functions
*/
-int ata_port_printk(const struct ata_port *ap, const char *level,
- const char *fmt, ...)
+void ata_port_printk(const struct ata_port *ap, const char *level,
+ const char *fmt, ...)
{
struct va_format vaf;
va_list args;
- int r;

va_start(args, fmt);

vaf.fmt = fmt;
vaf.va = &args;

- r = printk("%sata%u: %pV", level, ap->print_id, &vaf);
+ printk("%sata%u: %pV", level, ap->print_id, &vaf);

va_end(args);
-
- return r;
}
EXPORT_SYMBOL(ata_port_printk);

-int ata_link_printk(const struct ata_link *link, const char *level,
- const char *fmt, ...)
+void ata_link_printk(const struct ata_link *link, const char *level,
+ const char *fmt, ...)
{
struct va_format vaf;
va_list args;
- int r;

va_start(args, fmt);

@@ -6805,37 +6801,32 @@ int ata_link_printk(const struct ata_link *link, const char *level,
vaf.va = &args;

if (sata_pmp_attached(link->ap) || link->ap->slave_link)
- r = printk("%sata%u.%02u: %pV",
- level, link->ap->print_id, link->pmp, &vaf);
+ printk("%sata%u.%02u: %pV",
+ level, link->ap->print_id, link->pmp, &vaf);
else
- r = printk("%sata%u: %pV",
- level, link->ap->print_id, &vaf);
+ printk("%sata%u: %pV",
+ level, link->ap->print_id, &vaf);

va_end(args);
-
- return r;
}
EXPORT_SYMBOL(ata_link_printk);

-int ata_dev_printk(const struct ata_device *dev, const char *level,
+void ata_dev_printk(const struct ata_device *dev, const char *level,
const char *fmt, ...)
{
struct va_format vaf;
va_list args;
- int r;

va_start(args, fmt);

vaf.fmt = fmt;
vaf.va = &args;

- r = printk("%sata%u.%02u: %pV",
- level, dev->link->ap->print_id, dev->link->pmp + dev->devno,
- &vaf);
+ printk("%sata%u.%02u: %pV",
+ level, dev->link->ap->print_id, dev->link->pmp + dev->devno,
+ &vaf);

va_end(args);
-
- return r;
}
EXPORT_SYMBOL(ata_dev_printk);

diff --git a/include/linux/libata.h b/include/linux/libata.h
index 92abb49..bd5fefe 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -1404,14 +1404,14 @@ static inline int sata_srst_pmp(struct ata_link *link)
* printk helpers
*/
__printf(3, 4)
-int ata_port_printk(const struct ata_port *ap, const char *level,
- const char *fmt, ...);
+void ata_port_printk(const struct ata_port *ap, const char *level,
+ const char *fmt, ...);
__printf(3, 4)
-int ata_link_printk(const struct ata_link *link, const char *level,
- const char *fmt, ...);
+void ata_link_printk(const struct ata_link *link, const char *level,
+ const char *fmt, ...);
__printf(3, 4)
-int ata_dev_printk(const struct ata_device *dev, const char *level,
- const char *fmt, ...);
+void ata_dev_printk(const struct ata_device *dev, const char *level,
+ const char *fmt, ...);

#define ata_port_err(ap, fmt, ...) \
ata_port_printk(ap, KERN_ERR, fmt, ##__VA_ARGS__)


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