Messages in this thread | | | Date | Thu, 24 Feb 2022 10:49:32 +0800 | From | kernel test robot <> | Subject | [peterz-queue:x86/wip.ibt 22/42] kernel/bpf/trampoline.c:154:26: warning: passing argument 1 of 'ftrace_location' makes integer from pointer without a cast |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/wip.ibt head: 27b6438f414b6a37b60dcd90c8980397586d49db commit: 28a2850ec958722056cb6679cf68567905223971 [22/42] x86/bpf: Add ENDBR instructions to prologue and trampoline config: i386-randconfig-m021 (https://download.01.org/0day-ci/archive/20220224/202202241056.xqhnicOb-lkp@intel.com/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=28a2850ec958722056cb6679cf68567905223971 git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git git fetch --no-tags peterz-queue x86/wip.ibt git checkout 28a2850ec958722056cb6679cf68567905223971 # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash kernel/bpf/
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
kernel/bpf/trampoline.c: In function 'register_fentry': >> kernel/bpf/trampoline.c:154:26: warning: passing argument 1 of 'ftrace_location' makes integer from pointer without a cast [-Wint-conversion] 154 | faddr = ftrace_location(ip); | ^~ | | | void * In file included from kernel/bpf/trampoline.c:6: include/linux/ftrace.h:792:59: note: expected 'long unsigned int' but argument is of type 'void *' 792 | static inline unsigned long ftrace_location(unsigned long ip) | ~~~~~~~~~~~~~~^~
vim +/ftrace_location +154 kernel/bpf/trampoline.c
146 147 /* first time registering */ 148 static int register_fentry(struct bpf_trampoline *tr, void *new_addr) 149 { 150 void *ip = tr->func.addr; 151 unsigned long faddr; 152 int ret; 153 > 154 faddr = ftrace_location(ip); 155 if (faddr) 156 tr->func.ftrace_managed = true; 157 158 if (bpf_trampoline_module_get(tr)) 159 return -ENOENT; 160 161 if (tr->func.ftrace_managed) 162 ret = register_ftrace_direct((long)ip, (long)new_addr); 163 else 164 ret = bpf_arch_text_poke(ip, BPF_MOD_CALL, NULL, new_addr); 165 166 if (ret) 167 bpf_trampoline_module_put(tr); 168 return ret; 169 } 170
--- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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