Hi Ricardo,
I love your patch! Yet something to improve:
[auto build test ERROR on 4312098baf37ee17a8350725e6e0d0e8590252d4]
url: https://github.com/intel-lab-lkp/linux/commits/Ricardo-Ribalda/ASoC-SOF-Fix-... base: 4312098baf37ee17a8350725e6e0d0e8590252d4 patch link: https://lore.kernel.org/r/20221127-snd-freeze-v7-1-127c582f1ca4%40chromium.o... patch subject: [PATCH v7 1/2] kexec: Introduce kexec_with_frozen_processes config: s390-randconfig-r024-20221128 compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 6e4cea55f0d1104408b26ac574566a0e4de48036) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install s390 cross compiling tool for clang build # apt-get install binutils-s390x-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/ddb7195380bb431ff9f4505d5fcfbe... git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Ricardo-Ribalda/ASoC-SOF-Fix-deadlock-when-shutdown-a-frozen-userspace/20221201-003214 git checkout ddb7195380bb431ff9f4505d5fcfbef756b80a3a # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot lkp@intel.com
All error/warnings (new ones prefixed by >>):
In file included from kernel/kexec_core.c:14: In file included from include/linux/kexec.h:19: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 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] 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' #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) ^ In file included from kernel/kexec_core.c:14: In file included from include/linux/kexec.h:19: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 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' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) ^ In file included from kernel/kexec_core.c:14: In file included from include/linux/kexec.h:19: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __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] __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] __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] 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] 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] 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] 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] 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] writesl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^
kernel/kexec_core.c:59:30: error: use of undeclared identifier 'pm_freezing'; did you mean 'freezing'?
return kexec_in_progress && pm_freezing; ^~~~~~~~~~~ freezing include/linux/freezer.h:75:20: note: 'freezing' declared here static inline bool freezing(struct task_struct *p) { return false; } ^
kernel/kexec_core.c:59:30: warning: address of function 'freezing' will always evaluate to 'true' [-Wpointer-bool-conversion]
return kexec_in_progress && pm_freezing; ~~ ^~~~~~~~~~~ kernel/kexec_core.c:59:30: note: prefix with the address-of operator to silence this warning return kexec_in_progress && pm_freezing; ^ & 13 warnings and 1 error generated.
vim +59 kernel/kexec_core.c
56 57 bool kexec_with_frozen_processes(void) 58 {
59 return kexec_in_progress && pm_freezing;
60 } 61 EXPORT_SYMBOL(kexec_with_frozen_processes); 62