Messages in this thread | | | Date | Sat, 19 Mar 2022 09:55:40 +0800 | From | kernel test robot <> | Subject | [mingo-tip:master 221/2335] drivers/xen/grant-table.c:411:22: error: implicit declaration of function 'xen_gfn_to_pfn'; did you mean 'xen_cr3_to_pfn'? |
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tree: git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git master head: 85293bf3fca6d85608cff1447ce3097583f15fab commit: dbfd8a446611c67366513c5798b018f9d1b6123b [221/2335] headers/prep: Rename API: gfn_to_pfn() => xen_gfn_to_pfn() config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220319/202203190905.87HwuS9w-lkp@intel.com/config) compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git/commit/?id=dbfd8a446611c67366513c5798b018f9d1b6123b git remote add mingo-tip git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git git fetch --no-tags mingo-tip master git checkout dbfd8a446611c67366513c5798b018f9d1b6123b # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from arch/x86/include/asm/page.h:76, from arch/x86/include/asm/thread_info.h:12, from include/linux/thread_info.h:59, from arch/x86/include/asm/preempt.h:7, from include/linux/preempt.h:78, from include/linux/spinlock.h:55, from include/linux/mmzone.h:8, from include/linux/gfp.h:6, from include/linux/mm.h:10, from include/linux/memblock.h:12, from drivers/xen/grant-table.c:36: drivers/xen/grant-table.c: In function 'gnttab_add_deferred': >> drivers/xen/grant-table.c:411:22: error: implicit declaration of function 'xen_gfn_to_pfn'; did you mean 'xen_cr3_to_pfn'? [-Werror=implicit-function-declaration] 411 | page = pfn_to_page(xen_gfn_to_pfn(gfn)); | ^~~~~~~~~~~~~~ include/asm-generic/memory_model.h:25:40: note: in definition of macro '__pfn_to_page' 25 | #define __pfn_to_page(pfn) (vmemmap + (pfn)) | ^~~ drivers/xen/grant-table.c:411:10: note: in expansion of macro 'pfn_to_page' 411 | page = pfn_to_page(xen_gfn_to_pfn(gfn)); | ^~~~~~~~~~~ cc1: some warnings being treated as errors
vim +411 drivers/xen/grant-table.c
399 400 static void gnttab_add_deferred(grant_ref_t ref, bool readonly, 401 struct page *page) 402 { 403 struct deferred_entry *entry; 404 gfp_t gfp = (in_atomic() || irqs_disabled()) ? GFP_ATOMIC : GFP_KERNEL; 405 const char *what = KERN_WARNING "leaking"; 406 407 entry = kmalloc(sizeof(*entry), gfp); 408 if (!page) { 409 unsigned long gfn = gnttab_interface->read_frame(ref); 410 > 411 page = pfn_to_page(xen_gfn_to_pfn(gfn)); 412 get_page(page); 413 } 414 415 if (entry) { 416 unsigned long flags; 417 418 entry->ref = ref; 419 entry->ro = readonly; 420 entry->page = page; 421 entry->warn_delay = 60; 422 spin_lock_irqsave(&gnttab_list_lock, flags); 423 list_add_tail(&entry->list, &deferred_list); 424 if (!timer_pending(&deferred_timer)) { 425 deferred_timer.expires = jiffies + HZ; 426 add_timer(&deferred_timer); 427 } 428 spin_unlock_irqrestore(&gnttab_list_lock, flags); 429 what = KERN_DEBUG "deferring"; 430 } 431 printk("%s g.e. %#x (pfn %#lx)\n", 432 what, ref, page ? page_to_pfn(page) : -1); 433 } 434
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