From: kernel test robot <lkp@intel.com>
To: oe-kbuild@lists.linux.dev
Cc: lkp@intel.com
Subject: drivers/gpu/drm/xe/xe_gt_sriov_pf_policy.c:207:9: sparse: sparse: cannot size expression
Date: Mon, 22 Jun 2026 16:40:40 +0800 [thread overview]
Message-ID: <202606221633.jkV1d3JB-lkp@intel.com> (raw)
::::::
:::::: Manual check reason: "low confidence static check warning: drivers/gpu/drm/xe/xe_gt_sriov_pf_policy.c:207:9: sparse: sparse: cannot size expression"
::::::
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Michal Wajdeczko <michal.wajdeczko@intel.com>
CC: "Piotr Piórkowski" <piotr.piorkowski@intel.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: ef0c9f75a19532d7675384708fc8621e10850104
commit: fbbf73a81b845ea6fd40688a63570298298d03c1 drm/xe/pf: Force new VFs prorities only once
date: 2 months ago
:::::: branch date: 11 hours ago
:::::: commit date: 2 months ago
config: x86_64-randconfig-122 (https://download.01.org/0day-ci/archive/20260622/202606221633.jkV1d3JB-lkp@intel.com/config)
compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211)
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260622/202606221633.jkV1d3JB-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
| Fixes: fbbf73a81b84 ("drm/xe/pf: Force new VFs prorities only once")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/r/202606221633.jkV1d3JB-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
drivers/gpu/drm/xe/xe_gt_sriov_pf_policy.c:207:9: sparse: sparse: Expected ) in function call
drivers/gpu/drm/xe/xe_gt_sriov_pf_policy.c:207:9: sparse: sparse: got ,
drivers/gpu/drm/xe/xe_gt_sriov_pf_policy.c:473:16: sparse: sparse: Expected ) in expression
drivers/gpu/drm/xe/xe_gt_sriov_pf_policy.c:473:16: sparse: sparse: got 0
drivers/gpu/drm/xe/xe_gt_sriov_pf_policy.c:207:9: sparse: sparse: undefined identifier '__VA_OPT__'
drivers/gpu/drm/xe/xe_gt_sriov_pf_policy.c:207:9: sparse: sparse: cast from unknown type
>> drivers/gpu/drm/xe/xe_gt_sriov_pf_policy.c:207:9: sparse: sparse: cannot size expression
drivers/gpu/drm/xe/xe_gt_sriov_pf_policy.c:473:16: sparse: sparse: undefined identifier '__VA_OPT__'
vim +207 drivers/gpu/drm/xe/xe_gt_sriov_pf_policy.c
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 182
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 183 /**
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 184 * xe_gt_sriov_pf_policy_set_sched_if_idle - Control the 'sched_if_idle' policy.
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 185 * @gt: the &xe_gt where to apply the policy
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 186 * @enable: the value of the 'sched_if_idle' policy
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 187 *
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 188 * This function can only be called on PF.
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 189 *
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 190 * Return: 0 on success or a negative error code on failure.
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 191 */
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 192 int xe_gt_sriov_pf_policy_set_sched_if_idle(struct xe_gt *gt, bool enable)
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 193 {
fbbf73a81b845ea Michal Wajdeczko 2026-04-02 194 u32 priority;
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 195 int err;
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 196
fbbf73a81b845ea Michal Wajdeczko 2026-04-02 197 guard(mutex)(xe_gt_sriov_pf_master_mutex(gt));
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 198
fbbf73a81b845ea Michal Wajdeczko 2026-04-02 199 err = pf_provision_sched_if_idle(gt, enable);
fbbf73a81b845ea Michal Wajdeczko 2026-04-02 200 if (err)
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 201 return err;
fbbf73a81b845ea Michal Wajdeczko 2026-04-02 202
fbbf73a81b845ea Michal Wajdeczko 2026-04-02 203 /*
fbbf73a81b845ea Michal Wajdeczko 2026-04-02 204 * As of GuC 70.12 a change of this policy impacts individual configs
fbbf73a81b845ea Michal Wajdeczko 2026-04-02 205 * of all VFs. See `GUC_KLV_VGT_POLICY_SCHED_IF_IDLE`_ for details.
fbbf73a81b845ea Michal Wajdeczko 2026-04-02 206 */
fbbf73a81b845ea Michal Wajdeczko 2026-04-02 @207 xe_gt_assert(gt, GUC_FIRMWARE_VER_AT_LEAST(>->uc.guc, 70, 12));
fbbf73a81b845ea Michal Wajdeczko 2026-04-02 208
fbbf73a81b845ea Michal Wajdeczko 2026-04-02 209 priority = enable ? GUC_SCHED_PRIORITY_NORMAL : GUC_SCHED_PRIORITY_LOW;
fbbf73a81b845ea Michal Wajdeczko 2026-04-02 210 xe_gt_sriov_pf_config_force_sched_priority_locked(gt, priority);
fbbf73a81b845ea Michal Wajdeczko 2026-04-02 211
fbbf73a81b845ea Michal Wajdeczko 2026-04-02 212 return 0;
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 213 }
48b05e3c3dbbac4 Michal Wajdeczko 2024-04-10 214
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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