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Message-ID: <202601301357.SWdA3gzf-lkp@intel.com>
Date: Fri, 30 Jan 2026 13:51:40 +0800
From: kernel test robot <lkp@...el.com>
To: Stanislav Kinsburskii <skinsburskii@...ux.microsoft.com>,
kys@...rosoft.com, haiyangz@...rosoft.com, wei.liu@...nel.org,
decui@...rosoft.com, longli@...rosoft.com
Cc: oe-kbuild-all@...ts.linux.dev, linux-hyperv@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] mshv: Add support for integrated scheduler
Hi Stanislav,
kernel test robot noticed the following build warnings:
[auto build test WARNING on linus/master]
[also build test WARNING on v6.19-rc7 next-20260129]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Stanislav-Kinsburskii/mshv-Add-support-for-integrated-scheduler/20260130-041014
base: linus/master
patch link: https://lore.kernel.org/r/176971725312.67225.3938191771112866951.stgit%40skinsburskii-cloud-desktop.internal.cloudapp.net
patch subject: [PATCH v2] mshv: Add support for integrated scheduler
config: x86_64-randconfig-014-20260130 (https://download.01.org/0day-ci/archive/20260130/202601301357.SWdA3gzf-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260130/202601301357.SWdA3gzf-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601301357.SWdA3gzf-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/hv/mshv_root_main.c: In function 'mshv_init_vmm_caps':
>> drivers/hv/mshv_root_main.c:2255:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
2255 | if (ret && hv_l1vh_partition())
| ^~
drivers/hv/mshv_root_main.c:2257:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
2257 | return ret;
| ^~~~~~
In file included from include/linux/printk.h:621,
from include/asm-generic/bug.h:31,
from arch/x86/include/asm/bug.h:193,
from arch/x86/include/asm/alternative.h:9,
from arch/x86/include/asm/segment.h:6,
from arch/x86/include/asm/ptrace.h:5,
from arch/x86/include/asm/math_emu.h:5,
from arch/x86/include/asm/processor.h:13,
from include/linux/sched.h:13,
from include/linux/resume_user_mode.h:6,
from include/linux/entry-virt.h:6,
from drivers/hv/mshv_root_main.c:11:
drivers/hv/mshv_root_main.c: At top level:
include/linux/dynamic_debug.h:228:58: error: expected identifier or '(' before 'do'
228 | #define __dynamic_func_call_cls(id, cls, fmt, func, ...) do { \
| ^~
include/linux/dynamic_debug.h:259:9: note: in expansion of macro '__dynamic_func_call_cls'
259 | __dynamic_func_call_cls(__UNIQUE_ID(ddebug), cls, fmt, func, ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~
include/linux/dynamic_debug.h:261:9: note: in expansion of macro '_dynamic_func_call_cls'
261 | _dynamic_func_call_cls(_DPRINTK_CLASS_DFLT, fmt, func, ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/dynamic_debug.h:284:9: note: in expansion of macro '_dynamic_func_call'
284 | _dynamic_func_call(fmt, __dynamic_dev_dbg, \
| ^~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:165:9: note: in expansion of macro 'dynamic_dev_dbg'
165 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~
drivers/hv/mshv_root_main.c:2260:9: note: in expansion of macro 'dev_dbg'
2260 | dev_dbg(dev, "vmm_caps = %#llx\n", mshv_root.vmm_caps.as_uint64[0]);
| ^~~~~~~
include/linux/dynamic_debug.h:234:3: error: expected identifier or '(' before 'while'
234 | } while (0)
| ^~~~~
include/linux/dynamic_debug.h:259:9: note: in expansion of macro '__dynamic_func_call_cls'
259 | __dynamic_func_call_cls(__UNIQUE_ID(ddebug), cls, fmt, func, ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~
include/linux/dynamic_debug.h:261:9: note: in expansion of macro '_dynamic_func_call_cls'
261 | _dynamic_func_call_cls(_DPRINTK_CLASS_DFLT, fmt, func, ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/dynamic_debug.h:284:9: note: in expansion of macro '_dynamic_func_call'
284 | _dynamic_func_call(fmt, __dynamic_dev_dbg, \
| ^~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:165:9: note: in expansion of macro 'dynamic_dev_dbg'
165 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~~~~~~~
drivers/hv/mshv_root_main.c:2260:9: note: in expansion of macro 'dev_dbg'
2260 | dev_dbg(dev, "vmm_caps = %#llx\n", mshv_root.vmm_caps.as_uint64[0]);
| ^~~~~~~
drivers/hv/mshv_root_main.c:2262:9: error: expected identifier or '(' before 'return'
2262 | return 0;
| ^~~~~~
drivers/hv/mshv_root_main.c:2263:1: error: expected identifier or '(' before '}' token
2263 | }
| ^
vim +/if +2255 drivers/hv/mshv_root_main.c
2246
2247 static int __init mshv_init_vmm_caps(struct device *dev)
2248 {
2249 int ret;
2250
2251 ret = hv_call_get_partition_property_ex(HV_PARTITION_ID_SELF,
2252 HV_PARTITION_PROPERTY_VMM_CAPABILITIES,
2253 0, &mshv_root.vmm_caps,
2254 sizeof(mshv_root.vmm_caps));
> 2255 if (ret && hv_l1vh_partition())
2256 dev_err(dev, "Failed to get VMM capabilities: %d\n", ret);
2257 return ret;
2258 }
2259
2260 dev_dbg(dev, "vmm_caps = %#llx\n", mshv_root.vmm_caps.as_uint64[0]);
2261
2262 return 0;
2263 }
2264
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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