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Message-ID: <202507110131.OzZXquiC-lkp@intel.com>
Date: Fri, 11 Jul 2025 01:47:17 +0800
From: kernel test robot <lkp@...el.com>
To: Nick Hu <nick.hu@...ive.com>, Alexandre Ghiti <alex@...ti.fr>,
linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, Nick Hu <nick.hu@...ive.com>,
Anup Patel <anup@...infault.org>,
Thomas Gleixner <tglx@...utronix.de>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>
Subject: Re: [PATCH 2/2] irqchip/riscv-aplic: Save and restore APLIC registers
Hi Nick,
kernel test robot noticed the following build errors:
[auto build test ERROR on tip/irq/core]
[also build test ERROR on linus/master v6.16-rc5 next-20250710]
[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/Nick-Hu/irqchip-riscv-aplic-Save-and-restore-APLIC-registers/20250709-115608
base: tip/irq/core
patch link: https://lore.kernel.org/r/20250709025516.28051-3-nick.hu%40sifive.com
patch subject: [PATCH 2/2] irqchip/riscv-aplic: Save and restore APLIC registers
config: riscv-randconfig-r132-20250710 (https://download.01.org/0day-ci/archive/20250711/202507110131.OzZXquiC-lkp@intel.com/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project 01c97b4953e87ae455bd4c41e3de3f0f0f29c61c)
reproduce: (https://download.01.org/0day-ci/archive/20250711/202507110131.OzZXquiC-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/202507110131.OzZXquiC-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from drivers/irqchip/irq-riscv-aplic-main.c:13:
In file included from include/linux/of_irq.h:7:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:12:
In file included from arch/riscv/include/asm/io.h:136:
include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
804 | insb(addr, buffer, count);
| ^~~~~~~~~~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb'
104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count)
| ~~~~~~~~~~ ^
In file included from drivers/irqchip/irq-riscv-aplic-main.c:13:
In file included from include/linux/of_irq.h:7:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:12:
In file included from arch/riscv/include/asm/io.h:136:
include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
812 | insw(addr, buffer, count);
| ^~~~~~~~~~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw'
105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count)
| ~~~~~~~~~~ ^
In file included from drivers/irqchip/irq-riscv-aplic-main.c:13:
In file included from include/linux/of_irq.h:7:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:12:
In file included from arch/riscv/include/asm/io.h:136:
include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
820 | insl(addr, buffer, count);
| ^~~~~~~~~~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl'
106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count)
| ~~~~~~~~~~ ^
In file included from drivers/irqchip/irq-riscv-aplic-main.c:13:
In file included from include/linux/of_irq.h:7:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:12:
In file included from arch/riscv/include/asm/io.h:136:
include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
829 | outsb(addr, buffer, count);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb'
118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count)
| ~~~~~~~~~~ ^
In file included from drivers/irqchip/irq-riscv-aplic-main.c:13:
In file included from include/linux/of_irq.h:7:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:12:
In file included from arch/riscv/include/asm/io.h:136:
include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
838 | outsw(addr, buffer, count);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw'
119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count)
| ~~~~~~~~~~ ^
In file included from drivers/irqchip/irq-riscv-aplic-main.c:13:
In file included from include/linux/of_irq.h:7:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:12:
In file included from arch/riscv/include/asm/io.h:136:
include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
847 | outsl(addr, buffer, count);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl'
120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count)
| ~~~~~~~~~~ ^
In file included from drivers/irqchip/irq-riscv-aplic-main.c:13:
In file included from include/linux/of_irq.h:7:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:12:
In file included from arch/riscv/include/asm/io.h:136:
include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
| ~~~~~~~~~~ ^
>> drivers/irqchip/irq-riscv-aplic-main.c:220:26: error: use of undeclared identifier 'valH'
220 | priv->saved_msiaddrh = valH;
| ^~~~
7 warnings and 1 error generated.
vim +/valH +220 drivers/irqchip/irq-riscv-aplic-main.c
203
204 void aplic_init_hw_global(struct aplic_priv *priv, bool msi_mode)
205 {
206 u32 val;
207 #ifdef CONFIG_RISCV_M_MODE
208 u32 valh;
209
210 if (msi_mode) {
211 val = lower_32_bits(priv->msicfg.base_ppn);
212 valh = FIELD_PREP(APLIC_xMSICFGADDRH_BAPPN, upper_32_bits(priv->msicfg.base_ppn));
213 valh |= FIELD_PREP(APLIC_xMSICFGADDRH_LHXW, priv->msicfg.lhxw);
214 valh |= FIELD_PREP(APLIC_xMSICFGADDRH_HHXW, priv->msicfg.hhxw);
215 valh |= FIELD_PREP(APLIC_xMSICFGADDRH_LHXS, priv->msicfg.lhxs);
216 valh |= FIELD_PREP(APLIC_xMSICFGADDRH_HHXS, priv->msicfg.hhxs);
217 writel(val, priv->regs + APLIC_xMSICFGADDR);
218 writel(valh, priv->regs + APLIC_xMSICFGADDRH);
219 priv->saved_msiaddr = val;
> 220 priv->saved_msiaddrh = valH;
221 }
222 #endif
223
224 /* Setup APLIC domaincfg register */
225 val = readl(priv->regs + APLIC_DOMAINCFG);
226 val |= APLIC_DOMAINCFG_IE;
227 if (msi_mode)
228 val |= APLIC_DOMAINCFG_DM;
229 writel(val, priv->regs + APLIC_DOMAINCFG);
230 if (readl(priv->regs + APLIC_DOMAINCFG) != val)
231 dev_warn(priv->dev, "unable to write 0x%x in domaincfg\n", val);
232 priv->saved_domaincfg = val;
233 }
234
--
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https://github.com/intel/lkp-tests/wiki
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