| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <202409252009.ZbXikiQJ-lkp@intel.com>
Date: Wed, 25 Sep 2024 20:41:27 +0800
From: kernel test robot <lkp@...el.com>
To: Uwe Kleine-König <u.kleine-koenig@...libre.com>,
Michael Hennerich <michael.hennerich@...log.com>,
Nuno Sá <nuno.sa@...log.com>,
Trevor Gamblin <tgamblin@...libre.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-pwm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] pwm: axi-pwmgen: Create a dedicated function for getting
driver data from a chip
Hi Uwe,
kernel test robot noticed the following build errors:
[auto build test ERROR on 62f92d634458a1e308bb699986b9147a6d670457]
url: https://github.com/intel-lab-lkp/linux/commits/Uwe-Kleine-K-nig/pwm-axi-pwmgen-Create-a-dedicated-function-for-getting-driver-data-from-a-chip/20240923-205606
base: 62f92d634458a1e308bb699986b9147a6d670457
patch link: https://lore.kernel.org/r/20240923125418.16558-2-u.kleine-koenig%40baylibre.com
patch subject: [PATCH] pwm: axi-pwmgen: Create a dedicated function for getting driver data from a chip
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20240925/202409252009.ZbXikiQJ-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 7773243d9916f98ba0ffce0c3a960e4aa9f03e81)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240925/202409252009.ZbXikiQJ-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/202409252009.ZbXikiQJ-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from drivers/pwm/pwm-axi-pwmgen.c:25:
In file included from include/linux/io.h:14:
In file included from arch/s390/include/asm/io.h:93:
include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
548 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
| ^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
102 | #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
| ^
In file included from drivers/pwm/pwm-axi-pwmgen.c:25:
In file included from include/linux/io.h:14:
In file included from arch/s390/include/asm/io.h:93:
include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
| ^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
| ^
In file included from drivers/pwm/pwm-axi-pwmgen.c:25:
In file included from include/linux/io.h:14:
In file included from arch/s390/include/asm/io.h:93:
include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
585 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
693 | readsb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
701 | readsw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
709 | readsl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
718 | writesb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
727 | writesw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
736 | writesl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
In file included from drivers/pwm/pwm-axi-pwmgen.c:26:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/s390/include/asm/elf.h:181:
In file included from arch/s390/include/asm/mmu_context.h:11:
In file included from arch/s390/include/asm/pgalloc.h:18:
In file included from include/linux/mm.h:2213:
include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
504 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
505 | item];
| ~~~~
include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
511 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
512 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:524:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
524 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
525 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
>> drivers/pwm/pwm-axi-pwmgen.c:58:9: error: returning 'void *' from a function with incompatible result type 'struct axi_pwmgen_ddata'
58 | return pwmchip_get_drvdata(chip);
| ^~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/pwm/pwm-axi-pwmgen.c:64:27: error: initializing 'struct axi_pwmgen_ddata *' with an expression of incompatible type 'struct axi_pwmgen_ddata'
64 | struct axi_pwmgen_ddata *ddata = axi_pwmgen_ddata_from_chip(chip);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/pwm/pwm-axi-pwmgen.c:108:27: error: initializing 'struct axi_pwmgen_ddata *' with an expression of incompatible type 'struct axi_pwmgen_ddata'
108 | struct axi_pwmgen_ddata *ddata = axi_pwmgen_ddata_from_chip(chip);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
16 warnings and 3 errors generated.
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for OMAP2PLUS_MBOX
Depends on [n]: MAILBOX [=y] && (ARCH_OMAP2PLUS || ARCH_K3)
Selected by [m]:
- TI_K3_M4_REMOTEPROC [=m] && REMOTEPROC [=y] && (ARCH_K3 || COMPILE_TEST [=y])
vim +58 drivers/pwm/pwm-axi-pwmgen.c
55
56 static struct axi_pwmgen_ddata axi_pwmgen_ddata_from_chip(struct pwm_chip *chip)
57 {
> 58 return pwmchip_get_drvdata(chip);
59 }
60
61 static int axi_pwmgen_apply(struct pwm_chip *chip, struct pwm_device *pwm,
62 const struct pwm_state *state)
63 {
> 64 struct axi_pwmgen_ddata *ddata = axi_pwmgen_ddata_from_chip(chip);
65 unsigned int ch = pwm->hwpwm;
66 struct regmap *regmap = ddata->regmap;
67 u64 period_cnt, duty_cnt;
68 int ret;
69
70 if (state->polarity != PWM_POLARITY_NORMAL)
71 return -EINVAL;
72
73 if (state->enabled) {
74 period_cnt = mul_u64_u64_div_u64(state->period, ddata->clk_rate_hz, NSEC_PER_SEC);
75 if (period_cnt > UINT_MAX)
76 period_cnt = UINT_MAX;
77
78 if (period_cnt == 0)
79 return -EINVAL;
80
81 ret = regmap_write(regmap, AXI_PWMGEN_CHX_PERIOD(ch), period_cnt);
82 if (ret)
83 return ret;
84
85 duty_cnt = mul_u64_u64_div_u64(state->duty_cycle, ddata->clk_rate_hz, NSEC_PER_SEC);
86 if (duty_cnt > UINT_MAX)
87 duty_cnt = UINT_MAX;
88
89 ret = regmap_write(regmap, AXI_PWMGEN_CHX_DUTY(ch), duty_cnt);
90 if (ret)
91 return ret;
92 } else {
93 ret = regmap_write(regmap, AXI_PWMGEN_CHX_PERIOD(ch), 0);
94 if (ret)
95 return ret;
96
97 ret = regmap_write(regmap, AXI_PWMGEN_CHX_DUTY(ch), 0);
98 if (ret)
99 return ret;
100 }
101
102 return regmap_write(regmap, AXI_PWMGEN_REG_CONFIG, AXI_PWMGEN_LOAD_CONFIG);
103 }
104
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
Powered by blists - more mailing lists