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Message-ID: <202501111127.8w266r3J-lkp@intel.com>
Date: Sat, 11 Jan 2025 12:02:28 +0800
From: kernel test robot <lkp@...el.com>
To: Oliver O'Halloran <oohall@...il.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Michael Ellerman <mpe@...erman.id.au>
Subject: arch/powerpc/kernel/eeh_pe.c:261: warning: Function parameter or
struct member 'pe' not described in '__eeh_pe_get'
Hi Oliver,
FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 77a903cd8e5a91d120ee014c8f8eae74d6c5d0f6
commit: 35d64734b64315f2c5716c5a0a380ed1ba8fbe4a powerpc/eeh: Clean up PE addressing
date: 4 years, 3 months ago
config: powerpc64-randconfig-002-20231105 (https://download.01.org/0day-ci/archive/20250111/202501111127.8w266r3J-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 12.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250111/202501111127.8w266r3J-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/202501111127.8w266r3J-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> arch/powerpc/kernel/eeh_pe.c:261: warning: Function parameter or struct member 'pe' not described in '__eeh_pe_get'
>> arch/powerpc/kernel/eeh_pe.c:261: warning: Function parameter or struct member 'flag' not described in '__eeh_pe_get'
arch/powerpc/kernel/eeh_pe.c:516: warning: Function parameter or struct member 'root' not described in 'eeh_pe_state_mark'
arch/powerpc/kernel/eeh_pe.c:516: warning: Function parameter or struct member 'state' not described in 'eeh_pe_state_mark'
arch/powerpc/kernel/eeh_pe.c:516: warning: Excess function parameter 'pe' description in 'eeh_pe_state_mark'
arch/powerpc/kernel/eeh_pe.c:534: warning: Function parameter or struct member 'root' not described in 'eeh_pe_mark_isolated'
arch/powerpc/kernel/eeh_pe.c:534: warning: Excess function parameter 'pe' description in 'eeh_pe_mark_isolated'
arch/powerpc/kernel/eeh_pe.c:567: warning: Function parameter or struct member 'mode' not described in 'eeh_pe_dev_mode_mark'
arch/powerpc/kernel/eeh_pe.c:567: warning: expecting prototype for eeh_pe_dev_state_mark(). Prototype was for eeh_pe_dev_mode_mark() instead
arch/powerpc/kernel/eeh_pe.c:582: warning: Function parameter or struct member 'root' not described in 'eeh_pe_state_clear'
arch/powerpc/kernel/eeh_pe.c:582: warning: Excess function parameter 'data' description in 'eeh_pe_state_clear'
arch/powerpc/kernel/eeh_pe.c:774: warning: Function parameter or struct member 'edev' not described in 'eeh_restore_one_device_bars'
arch/powerpc/kernel/eeh_pe.c:774: warning: Excess function parameter 'data' description in 'eeh_restore_one_device_bars'
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for HOTPLUG_PCI_POWERNV
Depends on [n]: PCI [=y] && HOTPLUG_PCI [=n] && PPC_POWERNV [=y] && EEH [=y]
Selected by [y]:
- OCXL [=y] && PPC_POWERNV [=y] && PCI [=y] && EEH [=y] && PPC_XIVE_NATIVE [=y]
vim +261 arch/powerpc/kernel/eeh_pe.c
9e6d2cf65e3dba arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 251
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 252 /**
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 253 * __eeh_pe_get - Check the PE address
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 254 *
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 255 * For one particular PE, it can be identified by PE address
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 256 * or tranditional BDF address. BDF address is composed of
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 257 * Bus/Device/Function number. The extra data referred by flag
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 258 * indicates which type of address should be used.
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 259 */
d6c4932fbf2421 arch/powerpc/kernel/eeh_pe.c Sam Bobroff 2018-05-25 260 static void *__eeh_pe_get(struct eeh_pe *pe, void *flag)
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 @261 {
35d64734b64315 arch/powerpc/kernel/eeh_pe.c Oliver O'Halloran 2020-09-18 262 int *target_pe = flag;
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 263
35d64734b64315 arch/powerpc/kernel/eeh_pe.c Oliver O'Halloran 2020-09-18 264 /* PHB PEs are special and should be ignored */
5efc3ad7325d81 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-11 265 if (pe->type & EEH_PE_PHB)
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 266 return NULL;
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 267
35d64734b64315 arch/powerpc/kernel/eeh_pe.c Oliver O'Halloran 2020-09-18 268 if (*target_pe == pe->addr)
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 269 return pe;
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 270
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 271 return NULL;
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 272 }
22f4ab123f10e1 arch/powerpc/platforms/pseries/eeh_pe.c Gavin Shan 2012-09-07 273
:::::: The code at line 261 was first introduced by commit
:::::: 22f4ab123f10e1862579785c73d9e60fa24afd4f powerpc/eeh: Search PE based on requirement
:::::: TO: Gavin Shan <shangw@...ux.vnet.ibm.com>
:::::: CC: Benjamin Herrenschmidt <benh@...nel.crashing.org>
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