[ragnatech:media-tree 10/456] drivers/media/platform/davinci/vpbe.o: warning: objtool: vpbe_probe()+0x2b: sibling call from callable instruction with modified stack frame

[kbuild test robot]

tree:   git://git.ragnatech.se/linux media-tree
head:   a00031c159748f322f771f3c1d5ed944cba4bd30
commit: 05c90900e24be491102a6018e242ee7ca602918b [10/456] media: davinci: allow 
build vpbe_display with COMPILE_TEST
config: x86_64-allyesconfig (attached as .config)
compiler: gcc-8 (Debian 8.1.0-3) 8.1.0
reproduce:
        git checkout 05c90900e24be491102a6018e242ee7ca602918b
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

>> drivers/media/platform/davinci/vpbe.o: warning: objtool: vpbe_probe()+0x2b: 
>> sibling call from callable instruction with modified stack frame
>> drivers/media/platform/davinci/vpbe.o: warning: objtool: 
>> vpbe_initialize()+0x21: sibling call from callable instruction with modified 
>> stack frame
>> drivers/media/platform/davinci/vpbe.o: warning: objtool: 
>> vpbe_initialize.cold.7()+0x703: stack state mismatch: reg1[13]=-1+0 
>> reg2[13]=-2+32

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.config.gz
Description: application/gzip