arch/x86/kernel/cpu/mtrr/main.c: In function ‘mtrr_cleanup’:
arch/x86/kernel/cpu/mtrr/main.c:1363: attention : ‘gran_factor’ may be used uninitialized in this function
arch/x86/kernel/cpu/mtrr/main.c:1364: attention : ‘gran_base’ may be used uninitialized in this function

fixed by patch in http://marc.info/?l=linux-kernel&m=122394648405506&w=2 but not yet in mainline
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WARNING: arch/x86/kernel/built-in.o(.cpuinit.text+0x347): Section mismatch in reference from the function fpu_init() to the function .init.text:init_thread_xstate()
The function __cpuinit fpu_init() references
a function __init init_thread_xstate().
If init_thread_xstate is only used by fpu_init then
annotate init_thread_xstate with a matching annotation.

WARNING: vmlinux.o(.cpuinit.text+0x605): Section mismatch in reference from the function fpu_init() to the function .init.text:init_thread_xstate()
The function __cpuinit fpu_init() references
a function __init init_thread_xstate().
If init_thread_xstate is only used by fpu_init then
annotate init_thread_xstate with a matching annotation.

fixed by patches in http://marc.info/?l=linux-kernel&m=122718681726939&w=2
and http://marc.info/?l=linux-kernel&m=122718656126513&w=2 but not yet in mainline
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WARNING: kernel/built-in.o(.text+0x10a50): Section mismatch in reference from the function notify_cpu_starting() to the variable .cpuinit.data:cpu_chain
The function notify_cpu_starting() references
the variable __cpuinitdata cpu_chain.
This is often because notify_cpu_starting lacks a __cpuinitdata 
annotation or the annotation of cpu_chain is wrong.

WARNING: vmlinux.o(.text+0x34230): Section mismatch in reference from the function notify_cpu_starting() to the variable .cpuinit.data:cpu_chain
The function notify_cpu_starting() references
the variable __cpuinitdata cpu_chain.
This is often because notify_cpu_starting lacks a __cpuinitdata 
annotation or the annotation of cpu_chain is wrong.

fixed by patch in http://marc.info/?l=linux-kernel&m=122533953711446&w=2 but not yet in mainline
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