| Message ID | 20231124033642.520686-5-bhe@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | kexec_file: print out debugging message if required | expand |
Hi Baoquan, kernel test robot noticed the following build errors: [auto build test ERROR on arm64/for-next/core] [also build test ERROR on tip/x86/core powerpc/next powerpc/fixes linus/master v6.7-rc2 next-20231124] [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/Baoquan-He/kexec_file-add-kexec_file-flag-to-control-debug-printing/20231124-113942 base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core patch link: https://lore.kernel.org/r/20231124033642.520686-5-bhe%40redhat.com patch subject: [PATCH v2 4/7] kexec_file, arm64: print out debugging message if required config: arm64-randconfig-001-20231126 (https://download.01.org/0day-ci/archive/20231126/202311260548.1HaxcDnE-lkp@intel.com/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231126/202311260548.1HaxcDnE-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/202311260548.1HaxcDnE-lkp@intel.com/ All errors (new ones prefixed by >>): >> arch/arm64/kernel/machine_kexec.c:35:2: error: implicit declaration of function 'kexec_dprintk' is invalid in C99 [-Werror,-Wimplicit-function-declaration] kexec_dprintk("%s:%d:\n", func, line); ^ 1 error generated. vim +/kexec_dprintk +35 arch/arm64/kernel/machine_kexec.c 27 28 /** 29 * kexec_image_info - For debugging output. 30 */ 31 #define kexec_image_info(_i) _kexec_image_info(__func__, __LINE__, _i) 32 static void _kexec_image_info(const char *func, int line, 33 const struct kimage *kimage) 34 { > 35 kexec_dprintk("%s:%d:\n", func, line); 36 kexec_dprintk(" kexec kimage info:\n"); 37 kexec_dprintk(" type: %d\n", kimage->type); 38 kexec_dprintk(" head: %lx\n", kimage->head); 39 kexec_dprintk(" kern_reloc: %pa\n", &kimage->arch.kern_reloc); 40 kexec_dprintk(" el2_vectors: %pa\n", &kimage->arch.el2_vectors); 41 } 42
On 11/26/23 at 05:26am, kernel test robot wrote: > Hi Baoquan, > > kernel test robot noticed the following build errors: > > [auto build test ERROR on arm64/for-next/core] > [also build test ERROR on tip/x86/core powerpc/next powerpc/fixes linus/master v6.7-rc2 next-20231124] > [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/Baoquan-He/kexec_file-add-kexec_file-flag-to-control-debug-printing/20231124-113942 > base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core > patch link: https://lore.kernel.org/r/20231124033642.520686-5-bhe%40redhat.com > patch subject: [PATCH v2 4/7] kexec_file, arm64: print out debugging message if required > config: arm64-randconfig-001-20231126 (https://download.01.org/0day-ci/archive/20231126/202311260548.1HaxcDnE-lkp@intel.com/config) > compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1) > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231126/202311260548.1HaxcDnE-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/202311260548.1HaxcDnE-lkp@intel.com/ > > All errors (new ones prefixed by >>): > > >> arch/arm64/kernel/machine_kexec.c:35:2: error: implicit declaration of function 'kexec_dprintk' is invalid in C99 [-Werror,-Wimplicit-function-declaration] > kexec_dprintk("%s:%d:\n", func, line); > ^ > 1 error generated. Thanks for reporting. It has below kexec related config items, whereas the kexec_drpintk() is only defined in CONFIG_KEXEC_FILE ifdeffery scope, moving it to CONFIG_KEXEC_CORE iddeffery scope in <linux/kexec.h> can fix it as below draft code. Will update patch 1 to include the code change. === CONFIG_CRASH_CORE=y CONFIG_KEXEC_CORE=y CONFIG_KEXEC=y # CONFIG_KEXEC_FILE is not set CONFIG_CRASH_DUMP=y === diff --git a/include/linux/kexec.h b/include/linux/kexec.h index 66997efe36f1..b457b0d70f3f 100644 --- a/include/linux/kexec.h +++ b/include/linux/kexec.h @@ -265,13 +265,6 @@ arch_kexec_apply_relocations(struct purgatory_info *pi, Elf_Shdr *section, } #endif -extern bool kexec_file_dbg_print; - -#define kexec_dprintk(fmt, ...) \ - printk("%s" fmt, \ - kexec_file_dbg_print ? KERN_INFO : KERN_DEBUG, \ - ##__VA_ARGS__) - #endif /* CONFIG_KEXEC_FILE */ #ifdef CONFIG_KEXEC_ELF @@ -508,6 +501,13 @@ static inline int crash_hotplug_memory_support(void) { return 0; } static inline unsigned int crash_get_elfcorehdr_size(void) { return 0; } #endif +extern bool kexec_file_dbg_print; + +#define kexec_dprintk(fmt, ...) \ + printk("%s" fmt, \ + kexec_file_dbg_print ? KERN_INFO : KERN_DEBUG, \ + ##__VA_ARGS__) + #else /* !CONFIG_KEXEC_CORE */ struct pt_regs; struct task_struct; diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c index be5642a4ec49..bddba29a1557 100644 --- a/kernel/kexec_core.c +++ b/kernel/kexec_core.c @@ -52,6 +52,8 @@ atomic_t __kexec_lock = ATOMIC_INIT(0); /* Flag to indicate we are going to kexec a new kernel */ bool kexec_in_progress = false; +bool kexec_file_dbg_print; + int kexec_should_crash(struct task_struct *p) { /* diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c index 7ae1b0901aa4..8f87644b4eec 100644 --- a/kernel/kexec_file.c +++ b/kernel/kexec_file.c @@ -38,8 +38,6 @@ void set_kexec_sig_enforced(void) } #endif -bool kexec_file_dbg_print; - static int kexec_calculate_store_digests(struct kimage *image); /* Maximum size in bytes for kernel/initrd files. */
diff --git a/arch/arm64/kernel/kexec_image.c b/arch/arm64/kernel/kexec_image.c index 636be6715155..df71965178f5 100644 --- a/arch/arm64/kernel/kexec_image.c +++ b/arch/arm64/kernel/kexec_image.c @@ -122,7 +122,7 @@ static void *image_load(struct kimage *image, kernel_segment->memsz -= text_offset; image->start = kernel_segment->mem; - pr_debug("Loaded kernel at 0x%lx bufsz=0x%lx memsz=0x%lx\n", + kexec_dprintk("Loaded kernel at 0x%lx bufsz=0x%lx memsz=0x%lx\n", kernel_segment->mem, kbuf.bufsz, kernel_segment->memsz); diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c index 078910db77a4..b38aae5b488d 100644 --- a/arch/arm64/kernel/machine_kexec.c +++ b/arch/arm64/kernel/machine_kexec.c @@ -32,26 +32,12 @@ static void _kexec_image_info(const char *func, int line, const struct kimage *kimage) { - unsigned long i; - - pr_debug("%s:%d:\n", func, line); - pr_debug(" kexec kimage info:\n"); - pr_debug(" type: %d\n", kimage->type); - pr_debug(" start: %lx\n", kimage->start); - pr_debug(" head: %lx\n", kimage->head); - pr_debug(" nr_segments: %lu\n", kimage->nr_segments); - pr_debug(" dtb_mem: %pa\n", &kimage->arch.dtb_mem); - pr_debug(" kern_reloc: %pa\n", &kimage->arch.kern_reloc); - pr_debug(" el2_vectors: %pa\n", &kimage->arch.el2_vectors); - - for (i = 0; i < kimage->nr_segments; i++) { - pr_debug(" segment[%lu]: %016lx - %016lx, 0x%lx bytes, %lu pages\n", - i, - kimage->segment[i].mem, - kimage->segment[i].mem + kimage->segment[i].memsz, - kimage->segment[i].memsz, - kimage->segment[i].memsz / PAGE_SIZE); - } + kexec_dprintk("%s:%d:\n", func, line); + kexec_dprintk(" kexec kimage info:\n"); + kexec_dprintk(" type: %d\n", kimage->type); + kexec_dprintk(" head: %lx\n", kimage->head); + kexec_dprintk(" kern_reloc: %pa\n", &kimage->arch.kern_reloc); + kexec_dprintk(" el2_vectors: %pa\n", &kimage->arch.el2_vectors); } void machine_kexec_cleanup(struct kimage *kimage) diff --git a/arch/arm64/kernel/machine_kexec_file.c b/arch/arm64/kernel/machine_kexec_file.c index a11a6e14ba89..9f82401d99f4 100644 --- a/arch/arm64/kernel/machine_kexec_file.c +++ b/arch/arm64/kernel/machine_kexec_file.c @@ -127,7 +127,7 @@ int load_other_segments(struct kimage *image, image->elf_load_addr = kbuf.mem; image->elf_headers_sz = headers_sz; - pr_debug("Loaded elf core header at 0x%lx bufsz=0x%lx memsz=0x%lx\n", + kexec_dprintk("Loaded elf core header at 0x%lx bufsz=0x%lx memsz=0x%lx\n", image->elf_load_addr, kbuf.bufsz, kbuf.memsz); } @@ -148,7 +148,7 @@ int load_other_segments(struct kimage *image, goto out_err; initrd_load_addr = kbuf.mem; - pr_debug("Loaded initrd at 0x%lx bufsz=0x%lx memsz=0x%lx\n", + kexec_dprintk("Loaded initrd at 0x%lx bufsz=0x%lx memsz=0x%lx\n", initrd_load_addr, kbuf.bufsz, kbuf.memsz); } @@ -179,7 +179,7 @@ int load_other_segments(struct kimage *image, image->arch.dtb = dtb; image->arch.dtb_mem = kbuf.mem; - pr_debug("Loaded dtb at 0x%lx bufsz=0x%lx memsz=0x%lx\n", + kexec_dprintk("Loaded dtb at 0x%lx bufsz=0x%lx memsz=0x%lx\n", kbuf.mem, kbuf.bufsz, kbuf.memsz); return 0;
Replace pr_debug() with the newly added kexec_dprintk() in kexec_file loading related codes. And also remove the kimage->segment[] printing because the generic code has done the printing. Signed-off-by: Baoquan He <bhe@redhat.com> --- arch/arm64/kernel/kexec_image.c | 2 +- arch/arm64/kernel/machine_kexec.c | 26 ++++++-------------------- arch/arm64/kernel/machine_kexec_file.c | 6 +++--- 3 files changed, 10 insertions(+), 24 deletions(-)