linux-kernel - Re: [PATCH v4 2/2] Allow for riscv-clock to pick up mmio address.

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Message-ID: <202505200822.Av88hkk5-lkp@intel.com>
Date: Tue, 20 May 2025 08:40:48 +0800
From: kernel test robot <lkp@...el.com>
To: Aleksa Paunovic via B4 Relay <devnull+aleksa.paunovic.htecgroup.com@...nel.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>, Alexandre Ghiti <alex@...ti.fr>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
	Djordje Todorovic <djordje.todorovic@...cgroup.com>,
	Aleksa Paunovic <aleksa.paunovic@...cgroup.com>
Subject: Re: [PATCH v4 2/2] Allow for riscv-clock to pick up mmio address.

Hi Aleksa,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 9c32cda43eb78f78c73aee4aa344b777714e259b]

url:    https://github.com/intel-lab-lkp/linux/commits/Aleksa-Paunovic-via-B4-Relay/dt-bindings-timer-mti-gcru/20250514-165347
base:   9c32cda43eb78f78c73aee4aa344b777714e259b
patch link:    https://lore.kernel.org/r/20250514-riscv-time-mmio-v4-2-cb0cf2922d66%40htecgroup.com
patch subject: [PATCH v4 2/2] Allow for riscv-clock to pick up mmio address.
config: riscv-randconfig-r121-20250520 (https://download.01.org/0day-ci/archive/20250520/202505200822.Av88hkk5-lkp@intel.com/config)
compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90)
reproduce: (https://download.01.org/0day-ci/archive/20250520/202505200822.Av88hkk5-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/202505200822.Av88hkk5-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   WARNING: invalid argument to '-march': '_zabha'
>> drivers/clocksource/timer-riscv.c:58:16: sparse: sparse: cast removes address space '__iomem' of expression
>> drivers/clocksource/timer-riscv.c:58:16: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __iomem *addr @@     got unsigned int [usertype] * @@
   drivers/clocksource/timer-riscv.c:58:16: sparse:     expected void const volatile [noderef] __iomem *addr
   drivers/clocksource/timer-riscv.c:58:16: sparse:     got unsigned int [usertype] *

vim +/__iomem +58 drivers/clocksource/timer-riscv.c

    55	
    56	static u32 __maybe_unused mmio_get_cycles_hi(void)
    57	{
  > 58		return readl_relaxed(((u32 *)riscv_time_val) + 1);
    59	}
    60	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki