From 7705d548cbe33f18ea7713b9a07aa11047aaeca4 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Thu, 3 Dec 2009 23:21:14 -0800 Subject: Input: psmouse - do not carry DMI data around DMI tables use considerable amount of memory. Mark them as __initconst so they will be discarded once module is loaded. Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/synaptics.c | 23 ++++++++++++++++------- 1 file changed, 16 insertions(+), 7 deletions(-) (limited to 'drivers/input/mouse/synaptics.c') diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index f4a61252bcc9..36d6df4c0a78 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -24,6 +24,7 @@ */ #include +#include #include #include #include @@ -629,9 +630,10 @@ static int synaptics_reconnect(struct psmouse *psmouse) return 0; } -#if defined(__i386__) -#include -static const struct dmi_system_id toshiba_dmi_table[] = { +static bool impaired_toshiba_kbc; + +static const struct dmi_system_id __initconst toshiba_dmi_table[] = { +#if defined(CONFIG_DMI) && defined(CONFIG_X86) { .ident = "Toshiba Satellite", .matches = { @@ -664,8 +666,13 @@ static const struct dmi_system_id toshiba_dmi_table[] = { }, { } -}; #endif +}; + +void __init synaptics_module_init(void) +{ + impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); +} int synaptics_init(struct psmouse *psmouse) { @@ -718,18 +725,16 @@ int synaptics_init(struct psmouse *psmouse) if (SYN_CAP_PASS_THROUGH(priv->capabilities)) synaptics_pt_create(psmouse); -#if defined(__i386__) /* * Toshiba's KBC seems to have trouble handling data from * Synaptics as full rate, switch to lower rate which is roughly * thye same as rate of standard PS/2 mouse. */ - if (psmouse->rate >= 80 && dmi_check_system(toshiba_dmi_table)) { + if (psmouse->rate >= 80 && impaired_toshiba_kbc) { printk(KERN_INFO "synaptics: Toshiba %s detected, limiting rate to 40pps.\n", dmi_get_system_info(DMI_PRODUCT_NAME)); psmouse->rate = 40; } -#endif return 0; @@ -740,6 +745,10 @@ int synaptics_init(struct psmouse *psmouse) #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ +void __init synaptics_module_init(void) +{ +} + int synaptics_init(struct psmouse *psmouse) { return -ENOSYS; -- cgit v1.2.3