Re: [PATCH v2 3/3] xen: share start flags between PV and PVH

From: kbuild test robot
Date: Wed May 09 2018 - 12:35:12 EST


Hi Roger,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.17-rc4 next-20180509]
[cannot apply to xen-tip/linux-next]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Roger-Pau-Monne/xen-pvh-Dom0-support/20180509-222240
config: x86_64-randconfig-x009-201818 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

arch/x86/xen/enlighten_pvh.c: In function 'xen_prepare_pvh':
>> arch/x86/xen/enlighten_pvh.c:101:2: error: 'xen_start_flags' undeclared (first use in this function); did you mean 'xen_start_info'?
xen_start_flags = pvh_start_info.flags;
^~~~~~~~~~~~~~~
xen_start_info
arch/x86/xen/enlighten_pvh.c:101:2: note: each undeclared identifier is reported only once for each function it appears in

vim +101 arch/x86/xen/enlighten_pvh.c

84
85 /*
86 * This routine (and those that it might call) should not use
87 * anything that lives in .bss since that segment will be cleared later.
88 */
89 void __init xen_prepare_pvh(void)
90 {
91 u32 msr;
92 u64 pfn;
93
94 if (pvh_start_info.magic != XEN_HVM_START_MAGIC_VALUE) {
95 xen_raw_printk("Error: Unexpected magic value (0x%08x)\n",
96 pvh_start_info.magic);
97 BUG();
98 }
99
100 xen_pvh = 1;
> 101 xen_start_flags = pvh_start_info.flags;

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