From d8cc5267b802003e2c67ac5254788044852ccfa9 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Wed, 26 May 2010 14:43:46 -0700 Subject: [PATCH] ipmi: only register one si per bmc Only register one si per bmc. Use any user-provided devices first, followed by the first device with an irq, followed by the first device discovered. Signed-off-by: Matthew Garrett Signed-off-by: Corey Minyard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/ipmi/ipmi_si_intf.c | 29 +++++++++++++++++++++++++++-- 1 file changed, 27 insertions(+), 2 deletions(-) diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 3f2a4900fe18..9b9e1e915cf6 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -3298,6 +3298,14 @@ static __devinit int init_ipmi_si(void) hardcode_find_bmc(); + /* If the user gave us a device, they presumably want us to use it */ + mutex_lock(&smi_infos_lock); + if (!list_empty(&smi_infos)) { + mutex_unlock(&smi_infos_lock); + return 0; + } + mutex_unlock(&smi_infos_lock); + #ifdef CONFIG_DMI dmi_find_bmc(); #endif @@ -3321,10 +3329,27 @@ static __devinit int init_ipmi_si(void) of_register_platform_driver(&ipmi_of_platform_driver); #endif + /* Try to register something with interrupts first */ + mutex_lock(&smi_infos_lock); list_for_each_entry(e, &smi_infos, link) { - if (!e->si_sm) - try_smi_init(e); + if (e->irq) { + if (!try_smi_init(e)) { + mutex_unlock(&smi_infos_lock); + return 0; + } + } + } + + /* Fall back to the preferred device */ + + list_for_each_entry(e, &smi_infos, link) { + if (!e->irq) { + if (!try_smi_init(e)) { + mutex_unlock(&smi_infos_lock); + return 0; + } + } } mutex_unlock(&smi_infos_lock); -- 2.20.1