* [jcmvbkbc-xtensa:xtensa-6.5-rc1-esp32wifi 40/48] drivers/misc/esp32-ipc.c:145:13: warning: cast to 'void *' from smaller integer type 'u32' (aka 'unsigned int')
@ 2023-08-27 6:38 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-08-27 6:38 UTC (permalink / raw)
To: Max Filippov; +Cc: llvm, oe-kbuild-all
Hi Max,
First bad commit (maybe != root cause):
tree: https://github.com/jcmvbkbc/linux-xtensa xtensa-6.5-rc1-esp32wifi
head: 37fd9d9c4f957906efc14a9849942100af4f99e2
commit: 422f7405a1d5afa30398c9b6a9b6bc1b50a83be1 [40/48] esp_wifi: shmem: use esp_ipc driver
config: um-allnoconfig (https://download.01.org/0day-ci/archive/20230827/202308271405.7AGIaAFP-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20230827/202308271405.7AGIaAFP-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/oe-kbuild-all/202308271405.7AGIaAFP-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/misc/esp32-ipc.c:7:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
547 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from drivers/misc/esp32-ipc.c:7:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from drivers/misc/esp32-ipc.c:7:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
584 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
692 | readsb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
700 | readsw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
708 | readsl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
717 | writesb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
726 | writesw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
735 | writesl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
>> drivers/misc/esp32-ipc.c:145:13: warning: cast to 'void *' from smaller integer type 'u32' (aka 'unsigned int') [-Wint-to-void-pointer-cast]
145 | hw->hw_q = (void *)readl(p);
| ^~~~~~~~~~~~~~~~
drivers/misc/esp32-ipc.c:221:34: warning: unused variable 'esp32_ipc_match' [-Wunused-const-variable]
221 | static const struct of_device_id esp32_ipc_match[] = {
| ^
14 warnings generated.
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for ESP32_IPC
Depends on [n]: OF [=n] && HAS_IOMEM [=n]
Selected by [y]:
- ESP32_WIFI_SHMEM [=y] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_ESPRESSIF [=y]
vim +145 drivers/misc/esp32-ipc.c
8c1fb47acdb23c1 Max Filippov 2023-08-11 137
8c1fb47acdb23c1 Max Filippov 2023-08-11 138 static int init_hw(struct platform_device *pdev, struct esp32_ipc *hw)
8c1fb47acdb23c1 Max Filippov 2023-08-11 139 {
8c1fb47acdb23c1 Max Filippov 2023-08-11 140 void __user *p;
8c1fb47acdb23c1 Max Filippov 2023-08-11 141
8c1fb47acdb23c1 Max Filippov 2023-08-11 142 p = devm_of_iomap(&pdev->dev, pdev->dev.of_node, 0, NULL);
8c1fb47acdb23c1 Max Filippov 2023-08-11 143 if (IS_ERR(p))
8c1fb47acdb23c1 Max Filippov 2023-08-11 144 return PTR_ERR(p);
8c1fb47acdb23c1 Max Filippov 2023-08-11 @145 hw->hw_q = (void *)readl(p);
8c1fb47acdb23c1 Max Filippov 2023-08-11 146 devm_iounmap(&pdev->dev, p);
8c1fb47acdb23c1 Max Filippov 2023-08-11 147
8c1fb47acdb23c1 Max Filippov 2023-08-11 148 hw->regs = devm_of_iomap(&pdev->dev, pdev->dev.of_node, 1, NULL);
8c1fb47acdb23c1 Max Filippov 2023-08-11 149 if (IS_ERR(hw->regs))
8c1fb47acdb23c1 Max Filippov 2023-08-11 150 return PTR_ERR(hw->regs);
8c1fb47acdb23c1 Max Filippov 2023-08-11 151
8c1fb47acdb23c1 Max Filippov 2023-08-11 152 dev_dbg(&pdev->dev, "%s: regs = %p, queues = %p\n",
8c1fb47acdb23c1 Max Filippov 2023-08-11 153 __func__, hw->regs, hw->hw_q);
8c1fb47acdb23c1 Max Filippov 2023-08-11 154 if (hw->hw_q) {
8c1fb47acdb23c1 Max Filippov 2023-08-11 155 u32 i;
8c1fb47acdb23c1 Max Filippov 2023-08-11 156
8c1fb47acdb23c1 Max Filippov 2023-08-11 157 for (i = 0; i < 2; ++i) {
8c1fb47acdb23c1 Max Filippov 2023-08-11 158 dev_dbg(&pdev->dev, "%s: queue %d: offset = %d, mask = %x\n",
8c1fb47acdb23c1 Max Filippov 2023-08-11 159 __func__, i,
8c1fb47acdb23c1 Max Filippov 2023-08-11 160 hw->hw_q[i].offset,
8c1fb47acdb23c1 Max Filippov 2023-08-11 161 hw->hw_q[i].mask);
8c1fb47acdb23c1 Max Filippov 2023-08-11 162 }
8c1fb47acdb23c1 Max Filippov 2023-08-11 163 } else {
8c1fb47acdb23c1 Max Filippov 2023-08-11 164 return -ENODEV;
8c1fb47acdb23c1 Max Filippov 2023-08-11 165 }
8c1fb47acdb23c1 Max Filippov 2023-08-11 166
8c1fb47acdb23c1 Max Filippov 2023-08-11 167 hw->irq = platform_get_irq(pdev, 0);
8c1fb47acdb23c1 Max Filippov 2023-08-11 168 if (hw->irq >= 0) {
8c1fb47acdb23c1 Max Filippov 2023-08-11 169 int ret;
8c1fb47acdb23c1 Max Filippov 2023-08-11 170
8c1fb47acdb23c1 Max Filippov 2023-08-11 171 ret = devm_request_threaded_irq(&pdev->dev, hw->irq,
8c1fb47acdb23c1 Max Filippov 2023-08-11 172 esp32_ipc_irq_handler,
8c1fb47acdb23c1 Max Filippov 2023-08-11 173 esp32_ipc_thread_handler,
8c1fb47acdb23c1 Max Filippov 2023-08-11 174 IRQF_SHARED, pdev->name, hw);
8c1fb47acdb23c1 Max Filippov 2023-08-11 175 if (ret < 0) {
8c1fb47acdb23c1 Max Filippov 2023-08-11 176 dev_err(&pdev->dev, "request_irq %d failed\n", hw->irq);
8c1fb47acdb23c1 Max Filippov 2023-08-11 177 return ret;
8c1fb47acdb23c1 Max Filippov 2023-08-11 178 }
8c1fb47acdb23c1 Max Filippov 2023-08-11 179 } else {
8c1fb47acdb23c1 Max Filippov 2023-08-11 180 dev_err(&pdev->dev, "missing IRQ property\n");
8c1fb47acdb23c1 Max Filippov 2023-08-11 181 return -ENODEV;
8c1fb47acdb23c1 Max Filippov 2023-08-11 182 }
8c1fb47acdb23c1 Max Filippov 2023-08-11 183
8c1fb47acdb23c1 Max Filippov 2023-08-11 184 return 0;
8c1fb47acdb23c1 Max Filippov 2023-08-11 185 }
8c1fb47acdb23c1 Max Filippov 2023-08-11 186
:::::: The code at line 145 was first introduced by commit
:::::: 8c1fb47acdb23c156acdf7b6f286db404d2c508f misc/esp32-ipc: introduce generic IPC for ESP32
:::::: TO: Max Filippov <jcmvbkbc@gmail.com>
:::::: CC: Max Filippov <jcmvbkbc@gmail.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2023-08-27 6:38 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-08-27 6:38 [jcmvbkbc-xtensa:xtensa-6.5-rc1-esp32wifi 40/48] drivers/misc/esp32-ipc.c:145:13: warning: cast to 'void *' from smaller integer type 'u32' (aka 'unsigned int') kernel test robot
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.