From 1855256c497ecfefc730df6032243f26855ce52c Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Wed, 3 Oct 2007 15:15:40 -0400 Subject: 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 --- drivers/misc/msi-laptop.c | 2 +- drivers/misc/sony-laptop.c | 4 ++-- drivers/misc/thinkpad_acpi.c | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/misc') diff --git a/drivers/misc/msi-laptop.c b/drivers/misc/msi-laptop.c index 349be934db7..83679c76292 100644 --- a/drivers/misc/msi-laptop.c +++ b/drivers/misc/msi-laptop.c @@ -283,7 +283,7 @@ static struct platform_device *msipf_device; /* Initialization */ -static int dmi_check_cb(struct dmi_system_id *id) +static int dmi_check_cb(const struct dmi_system_id *id) { printk("msi-laptop: Identified laptop model '%s'.\n", id->ident); return 0; diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c index d38ddce592c..e73a71f04bb 100644 --- a/drivers/misc/sony-laptop.c +++ b/drivers/misc/sony-laptop.c @@ -807,7 +807,7 @@ static struct sony_nc_event *sony_nc_events; /* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence * for Fn keys */ -static int sony_nc_C_enable(struct dmi_system_id *id) +static int sony_nc_C_enable(const struct dmi_system_id *id) { int result = 0; @@ -845,7 +845,7 @@ static struct sony_nc_event sony_C_events[] = { }; /* SNC-only model map */ -static struct dmi_system_id sony_nc_ids[] = { +static const struct dmi_system_id sony_nc_ids[] = { { .ident = "Sony Vaio FE Series", .callback = sony_nc_C_enable, diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c index 0222bbaf7b7..6c0b2f0a51a 100644 --- a/drivers/misc/thinkpad_acpi.c +++ b/drivers/misc/thinkpad_acpi.c @@ -4448,7 +4448,7 @@ static void ibm_exit(struct ibm_struct *ibm) static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) { - struct dmi_device *dev = NULL; + const struct dmi_device *dev = NULL; char ec_fw_string[18]; if (!tp) -- cgit v1.2.3