Hi Santosh, Santosh Shilimkar <santosh.shilimkar@xxxxxx> writes: > The series adds OMAP4 MPUSS (MPU SubSystem) power management support for > suspend (S2R), CPU hotplug and CPUidle. Just noticed when doing some final build/sanity testing that there are a few of compile/link warnings/problems when the kernel is built without CONFIG_PM Some warnings: /work/kernel/omap/pm/arch/arm/mach-omap2/omap-wakeupgen.c:203:13: warning: 'irq_save_context' defined but not used /work/kernel/omap/pm/arch/arm/mach-omap2/omap-wakeupgen.c:270:13: warning: 'irq_save_secure_context' defined but not used and some failures (these happen when CONFIG_SUSPEND=n but CONFIG_PM_RUNTIME=y: arch/arm/mach-omap2/built-in.o: In function `skip_l2en': /work/kernel/omap/pm/arch/arm/mach-omap2/sleep44xx.S:323: undefined reference to `cpu_resume' arch/arm/mach-omap2/built-in.o: In function `omap_sram_idle': /work/kernel/omap/pm/arch/arm/mach-omap2/pm34xx.c:429: undefined reference to `cpu_suspend' arch/arm/mach-omap2/built-in.o: In function `skipl2reen': /work/kernel/omap/pm/arch/arm/mach-omap2/sleep34xx.S:534: undefined reference to `cpu_resume' arch/arm/mach-omap2/built-in.o: In function `omap4_enter_lowpower': /work/kernel/omap/pm/arch/arm/mach-omap2/omap-mpuss-lowpower.c:281: undefined reference to `cpu_suspend' Turns out these are not directly related to your series and OMAP3 exhibits the same problems. I just posted a patch[1] to attempt to address these. But could you fixup the first problem and test with [1] to see if things still build/work as expected. Thanks, Kevin [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2011-October/068606.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html