tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/asm
head:   01651324edad9db4fe49fb39b905c76861649b4c
commit: 39358a033b2e4432052265c1fa0f36f572d8cfb5 [6/37] objtool, x86: Add 
facility for asm code to provide unwind hints
config: x86_64-randconfig-h0-08111838 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
        git checkout 39358a033b2e4432052265c1fa0f36f572d8cfb5
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

>> drivers/mtd/chips/cfi_util.o: warning: objtool: cfi_qry_mode_on()+0x8b: 
>> return with modified stack frame
>> drivers/mtd/chips/cfi_util.o: warning: objtool: cfi_qry_mode_on()+0x0: stack 
>> state mismatch: cfa1=-4-32 cfa2=7+8
--
>> drivers/mtd/chips/cfi_cmdset_0002.o: warning: objtool: 
>> fixup_use_fwh_lock()+0x8: unknown stack-related register move
>> drivers/mtd/chips/cfi_cmdset_0002.o: warning: objtool: 
>> fixup_use_fwh_lock()+0x0: stack state mismatch: cfa1=6+16 cfa2=7+8
>> drivers/mtd/chips/cfi_cmdset_0002.o: warning: objtool: do_otp_write()+0xa: 
>> unsupported stack pointer realignment
>> drivers/mtd/chips/cfi_cmdset_0002.o: warning: objtool: do_otp_write()+0x0: 
>> stack state mismatch: cfa1=-4-40 cfa2=7+8

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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