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57d4810ea0
Revert 7e92b4fc34. It broke Sébastien Dugué's
machine and Jeff said (persuasively)
This seems like it will break decades-long-working stuff, in favor of
breaking new ground in our favorite area, "trusting the BIOS."
It's just not worth it for serial ports, IMO. Serial ports are something
that just shouldn't break at this late stage in the game. My new Intel
platform boxes don't even have serial ports, so I question the value of
messing with serial port probing even more... because... just wait a year,
and your box won't have a serial port either! :)
I certainly don't object to the use of platform devices (or isa_driver),
but the probe change seems questionable. That's sorta analagous to
rewriting the floppy driver probe routine. Sure you could do it... but why
risk all that damage and go through debugging all over again?
It seems clear from this report that we cannot, should not, trust BIOS for
something (a) so simple and (b) that has been working for over a decade.
Much discussion ensued and we've decided to have another go at all of this.
Cc: Sébastien Dugué <sebastien.dugue@bull.net>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Jeff Garzik <jeff@garzik.org>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Cc: Sascha Sommer <saschasommer@freenet.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
64 lines
2.4 KiB
Makefile
64 lines
2.4 KiB
Makefile
#
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# Makefile for the linux kernel.
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#
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extra-y := head.o head64.o init_task.o vmlinux.lds
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EXTRA_AFLAGS := -traditional
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obj-y := process.o signal.o entry.o traps.o irq.o \
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ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_x86_64.o \
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x8664_ksyms.o i387.o syscall.o vsyscall.o \
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setup64.o bootflag.o e820.o reboot.o quirks.o i8237.o \
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pci-dma.o pci-nommu.o alternative.o hpet.o tsc.o bugs.o \
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perfctr-watchdog.o
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obj-$(CONFIG_STACKTRACE) += stacktrace.o
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obj-$(CONFIG_X86_MCE) += mce.o therm_throt.o
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obj-$(CONFIG_X86_MCE_INTEL) += mce_intel.o
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obj-$(CONFIG_X86_MCE_AMD) += mce_amd.o
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obj-$(CONFIG_MTRR) += ../../i386/kernel/cpu/mtrr/
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obj-$(CONFIG_ACPI) += acpi/
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obj-$(CONFIG_X86_MSR) += msr.o
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obj-$(CONFIG_MICROCODE) += microcode.o
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obj-$(CONFIG_X86_CPUID) += cpuid.o
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obj-$(CONFIG_SMP) += smp.o smpboot.o trampoline.o tsc_sync.o
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obj-y += apic.o nmi.o
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obj-y += io_apic.o mpparse.o genapic.o genapic_flat.o
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obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o crash.o
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obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
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obj-$(CONFIG_PM) += suspend.o
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obj-$(CONFIG_HIBERNATION) += suspend_asm.o
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obj-$(CONFIG_CPU_FREQ) += cpufreq/
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obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
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obj-$(CONFIG_IOMMU) += pci-gart.o aperture.o
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obj-$(CONFIG_CALGARY_IOMMU) += pci-calgary.o tce.o
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obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o
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obj-$(CONFIG_KPROBES) += kprobes.o
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obj-$(CONFIG_X86_PM_TIMER) += pmtimer.o
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obj-$(CONFIG_X86_VSMP) += vsmp.o
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obj-$(CONFIG_K8_NB) += k8.o
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obj-$(CONFIG_AUDIT) += audit.o
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obj-$(CONFIG_MODULES) += module.o
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obj-$(CONFIG_PCI) += early-quirks.o
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obj-y += topology.o
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obj-y += intel_cacheinfo.o
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obj-y += addon_cpuid_features.o
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obj-y += pcspeaker.o
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CFLAGS_vsyscall.o := $(PROFILING) -g0
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therm_throt-y += ../../i386/kernel/cpu/mcheck/therm_throt.o
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bootflag-y += ../../i386/kernel/bootflag.o
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cpuid-$(subst m,y,$(CONFIG_X86_CPUID)) += ../../i386/kernel/cpuid.o
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topology-y += ../../i386/kernel/topology.o
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microcode-$(subst m,y,$(CONFIG_MICROCODE)) += ../../i386/kernel/microcode.o
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intel_cacheinfo-y += ../../i386/kernel/cpu/intel_cacheinfo.o
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addon_cpuid_features-y += ../../i386/kernel/cpu/addon_cpuid_features.o
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quirks-y += ../../i386/kernel/quirks.o
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i8237-y += ../../i386/kernel/i8237.o
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msr-$(subst m,y,$(CONFIG_X86_MSR)) += ../../i386/kernel/msr.o
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alternative-y += ../../i386/kernel/alternative.o
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pcspeaker-y += ../../i386/kernel/pcspeaker.o
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perfctr-watchdog-y += ../../i386/kernel/cpu/perfctr-watchdog.o
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