From: kernel test robot <lkp@intel.com>
To: oe-kbuild@lists.linux.dev
Cc: lkp@intel.com
Subject: Re: [PATCH v2 2/3] PCI: dwc: Add helper to Program T_POWER_ON
Date: Tue, 24 Feb 2026 08:45:43 +0800 [thread overview]
Message-ID: <202602240816.o0QnIVMF-lkp@intel.com> (raw)
::::::
:::::: Manual check reason: "__compiletime_assert_NNN"
::::::
BCC: lkp@intel.com
CC: llvm@lists.linux.dev
CC: oe-kbuild-all@lists.linux.dev
In-Reply-To: <20260223-t_power_on_fux-v2-2-20c921262709@oss.qualcomm.com>
References: <20260223-t_power_on_fux-v2-2-20c921262709@oss.qualcomm.com>
TO: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
TO: Manivannan Sadhasivam <mani@kernel.org>
TO: Lorenzo Pieralisi <lpieralisi@kernel.org>
TO: "Krzysztof Wilczyński" <kwilczynski@kernel.org>
TO: Rob Herring <robh@kernel.org>
TO: Bjorn Helgaas <helgaas@kernel.org>
TO: Jingoo Han <jingoohan1@gmail.com>
CC: linux-pci@vger.kernel.org
CC: linux-arm-msm@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: mayank.rana@oss.qualcomm.com
CC: quic_vbadigan@quicinc.com
CC: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Hi Krishna,
kernel test robot noticed the following build errors:
[auto build test ERROR on 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f]
url: https://github.com/intel-lab-lkp/linux/commits/Krishna-Chaitanya-Chundru/PCI-ASPM-Add-helper-to-encode-L1SS-T_POWER_ON-fields/20260223-192621
base: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f
patch link: https://lore.kernel.org/r/20260223-t_power_on_fux-v2-2-20c921262709%40oss.qualcomm.com
patch subject: [PATCH v2 2/3] PCI: dwc: Add helper to Program T_POWER_ON
:::::: branch date: 13 hours ago
:::::: commit date: 13 hours ago
config: x86_64-randconfig-014-20260224 (https://download.01.org/0day-ci/archive/20260224/202602240816.o0QnIVMF-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260224/202602240816.o0QnIVMF-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@intel.com>
| Closes: https://lore.kernel.org/r/202602240816.o0QnIVMF-lkp@intel.com/
All errors (new ones prefixed by >>):
>> drivers/pci/controller/dwc/pcie-designware.c:1270:10: error: call to '__compiletime_assert_539' declared with 'error' attribute: FIELD_PREP: value too large for the field
1270 | val |= FIELD_PREP(PCI_L1SS_CAP_P_PWR_ON_SCALE, scale);
| ^
include/linux/bitfield.h:138:3: note: expanded from macro 'FIELD_PREP'
138 | __FIELD_PREP(_mask, _val, "FIELD_PREP: "); \
| ^
include/linux/bitfield.h:91:3: note: expanded from macro '__FIELD_PREP'
91 | __BF_FIELD_CHECK_MASK(mask, val, pfx); \
| ^
include/linux/bitfield.h:70:3: note: expanded from macro '__BF_FIELD_CHECK_MASK'
70 | BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ? \
| ^
note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:694:2: note: expanded from macro '_compiletime_assert'
694 | __compiletime_assert(condition, msg, prefix, suffix)
| ^
include/linux/compiler_types.h:687:4: note: expanded from macro '__compiletime_assert'
687 | prefix ## suffix(); \
| ^
<scratch space>:28:1: note: expanded from here
28 | __compiletime_assert_539
| ^
1 error generated.
vim +1270 drivers/pci/controller/dwc/pcie-designware.c
a00bba406b5a68 Bjorn Helgaas 2025-11-18 1251
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1252 /* TODO: Need to handle multi root ports */
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1253 void dw_pcie_program_t_power_on(struct dw_pcie *pci, u16 t_power_on)
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1254 {
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1255 u8 scale, value;
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1256 u16 offset;
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1257 u32 val;
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1258
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1259 if (!t_power_on)
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1260 return;
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1261
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1262 offset = dw_pcie_find_ext_capability(pci, PCI_EXT_CAP_ID_L1SS);
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1263 if (offset) {
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1264 pcie_encode_t_power_on(t_power_on, &scale, &value);
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1265
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1266 dw_pcie_dbi_ro_wr_en(pci);
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1267
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1268 val = readl(pci->dbi_base + offset + PCI_L1SS_CAP);
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1269 val &= ~(PCI_L1SS_CAP_P_PWR_ON_SCALE | PCI_L1SS_CAP_P_PWR_ON_VALUE);
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 @1270 val |= FIELD_PREP(PCI_L1SS_CAP_P_PWR_ON_SCALE, scale);
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1271 val |= FIELD_PREP(PCI_L1SS_CAP_P_PWR_ON_VALUE, value);
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1272
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1273 writel(val, pci->dbi_base + offset + PCI_L1SS_CAP);
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1274
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1275 dw_pcie_dbi_ro_wr_dis(pci);
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1276 }
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1277 }
23b85f7abefda8 Krishna Chaitanya Chundru 2026-02-23 1278
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2026-02-24 0:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-24 0:45 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2026-02-23 11:13 [PATCH v2 0/3] PCI: qcom: Program T_POWER_ON value for L1.2 exit timing Krishna Chaitanya Chundru
2026-02-23 11:13 ` [PATCH v2 2/3] PCI: dwc: Add helper to Program T_POWER_ON Krishna Chaitanya Chundru
2026-02-23 15:38 ` Bjorn Helgaas
2026-02-24 5:21 ` Krishna Chaitanya Chundru
2026-02-23 23:33 ` kernel test robot
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