[PATCH 3/8] ipmi: Only register one si per bmc
in [Kernel]
|
Prev: [PATCH 5/8] ipmi: Reduce polling when interrupts are available
Next: [PATCH 7/8] ipmi: Attempt to register multiple SIs of the same type
From: Corey Minyard on 3 May 2010 09:40 From: Matthew Garrett <mjg(a)redhat.com> 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 <mjg(a)redhat.com> Signed-off-by: Corey Minyard <cminyard(a)mvista.com> --- Index: linux-2.6/drivers/char/ipmi/ipmi_si_intf.c =================================================================== --- linux-2.6.orig/drivers/char/ipmi/ipmi_si_intf.c +++ linux-2.6/drivers/char/ipmi/ipmi_si_intf.c @@ -3300,6 +3300,14 @@ 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 @@ -3323,10 +3331,27 @@ 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); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |