The patch titled fix "x86: HPET_MSI Initialise per-cpu HPET timers" has been added to the -mm tree. Its filename is fix-x86-hpet_msi-initialise-per-cpu-hpet-timers.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: fix "x86: HPET_MSI Initialise per-cpu HPET timers" From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> arch/x86/kernel/hpet.c:48: warning: 'hpet_devs' defined but not used arch/x86/kernel/hpet.c:50: warning: 'per_cpu__cpu_hpet_dev' defined but not used caused by commit 45efe60daf77bf628c0dcfdbd2abc3fb531b5114 Author: venkatesh.pallipadi@xxxxxxxxx <venkatesh.pallipadi@xxxxxxxxx> Date: Fri Sep 5 18:02:18 2008 -0700 x86: HPET_MSI Initialise per-cpu HPET timers Initialize a per CPU HPET MSI timer when possible. We retain the HPET timer 0 (IRQ 0) and timer 1 (IRQ 8) as is when legacy mode is being used. We setup the remaining HPET timers as per CPU MSI based timers. This per CPU timer will eliminate the need for timer broadcasting with IRQ 0 when there is non-functional LAPIC timer across CPU deep C-states. If there are more CPUs than number of available timers, CPUs that do not find any timer to use will continue using LAPIC and IRQ 0 broadcast. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx> Signed-off-by: Shaohua Li <shaohua.li@xxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> Cc: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx> Cc: Shaohua Li <shaohua.li@xxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/x86/kernel/hpet.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff -puN arch/x86/kernel/hpet.c~fix-x86-hpet_msi-initialise-per-cpu-hpet-timers arch/x86/kernel/hpet.c --- a/arch/x86/kernel/hpet.c~fix-x86-hpet_msi-initialise-per-cpu-hpet-timers +++ a/arch/x86/kernel/hpet.c @@ -45,9 +45,10 @@ struct hpet_dev { char name[10]; }; -static struct hpet_dev *hpet_devs; - +#ifdef CONFIG_HPET +static struct hpet_dev *hpet_devs; static DEFINE_PER_CPU(struct hpet_dev *, cpu_hpet_dev); +#endif unsigned long hpet_readl(unsigned long a) { _ Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are origin.patch 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