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| author | Jeff Garzik <jeff@garzik.org> | 2007-10-03 15:15:40 -0400 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-10-09 20:22:20 -0400 |
| commit | 1855256c497ecfefc730df6032243f26855ce52c (patch) | |
| tree | b73947f1a5e1b798e1dec068ac1cda25ae910bf6 /drivers/hwmon | |
| parent | bbf25010f1a6b761914430f5fca081ec8c7accd1 (diff) | |
| download | op-kernel-dev-1855256c497ecfefc730df6032243f26855ce52c.zip op-kernel-dev-1855256c497ecfefc730df6032243f26855ce52c.tar.gz | |
drivers/firmware: const-ify DMI API and internals
Three main sets of changes:
1) dmi_get_system_info() return value should have been marked const,
since callers should not be changing that data.
2) const-ify DMI internals, since DMI firmware tables should,
whenever possible, be marked const to ensure we never ever write to
that data area.
3) const-ify DMI API, to enable marking tables const where possible
in low-level drivers.
And if we're really lucky, this might enable some additional
optimizations on the part of the compiler.
The bulk of the changes are #2 and #3, which are interrelated. #1 could
have been a separate patch, but it was so small compared to the others,
it was easier to roll it into this changeset.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/abituguru.c | 2 | ||||
| -rw-r--r-- | drivers/hwmon/applesmc.c | 2 | ||||
| -rw-r--r-- | drivers/hwmon/hdaps.c | 4 |
3 files changed, 4 insertions, 4 deletions
diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c index d575ee9..2317f4b 100644 --- a/drivers/hwmon/abituguru.c +++ b/drivers/hwmon/abituguru.c @@ -1449,7 +1449,7 @@ static int __init abituguru_init(void) struct resource res = { .flags = IORESOURCE_IO }; #ifdef CONFIG_DMI - char *board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR); + const char *board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR); /* safety check, refuse to load on non Abit motherboards */ if (!force && (!board_vendor || diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c index 941729a..56213b7 100644 --- a/drivers/hwmon/applesmc.c +++ b/drivers/hwmon/applesmc.c @@ -1071,7 +1071,7 @@ static const struct attribute_group temperature_attributes_group = /* * applesmc_dmi_match - found a match. return one, short-circuiting the hunt. */ -static int applesmc_dmi_match(struct dmi_system_id *id) +static int applesmc_dmi_match(const struct dmi_system_id *id) { int i = 0; struct dmi_match_data* dmi_data = id->driver_data; diff --git a/drivers/hwmon/hdaps.c b/drivers/hwmon/hdaps.c index e0cf5e6..a7c6d40 100644 --- a/drivers/hwmon/hdaps.c +++ b/drivers/hwmon/hdaps.c @@ -480,14 +480,14 @@ static struct attribute_group hdaps_attribute_group = { /* Module stuff */ /* hdaps_dmi_match - found a match. return one, short-circuiting the hunt. */ -static int __init hdaps_dmi_match(struct dmi_system_id *id) +static int __init hdaps_dmi_match(const struct dmi_system_id *id) { printk(KERN_INFO "hdaps: %s detected.\n", id->ident); return 1; } /* hdaps_dmi_match_invert - found an inverted match. */ -static int __init hdaps_dmi_match_invert(struct dmi_system_id *id) +static int __init hdaps_dmi_match_invert(const struct dmi_system_id *id) { hdaps_invert = 1; printk(KERN_INFO "hdaps: inverting axis readings.\n"); |
