[kbuild-all] Re: [printk:for-5.13-vsprintf-pgp 3/4] lib/test_printf.c:612:17: error: 'tag' undeclared

On Wed, Mar 10, 2021 at 12:06 AM kernel test robot <lkp(a)intel.com&gt; wrote: > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/printk/linux.git for-5.13-vsprintf-pgp > head: 3453afc70070c97100ce6a6e02c4f885682f3d88 > commit: 2ce0893b9b8168d4b0e2e00cf3208dae4b964aab [3/4] vsprintf: dump full information of page flags in pGp > config: arm64-randconfig-r011-20210309 (attached as .config) > compiler: aarch64-linux-gcc (GCC) 9.3.0 > 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 > # https://git.kernel.org/pub/scm/linux/kernel/git/printk/linux.git/commit/?... > git remote add printk https://git.kernel.org/pub/scm/linux/kernel/git/printk/linux.git > git fetch --no-tags printk for-5.13-vsprintf-pgp > git checkout 2ce0893b9b8168d4b0e2e00cf3208dae4b964aab > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp(a)intel.com&gt; > > All errors (new ones prefixed by >>): > > lib/test_printf.c: In function 'page_flags_test': > lib/test_printf.c:595:17: error: 'sec' undeclared (first use in this function); did you mean 'sem'? > 595 | page_flags |= (sec & SECTIONS_MASK) << SECTIONS_PGSHIFT; > | ^~~ > | sem > lib/test_printf.c:595:17: note: each undeclared identifier is reported only once for each function it appears in > >> lib/test_printf.c:612:17: error: 'tag' undeclared (first use in this function) > 612 | page_flags |= (tag & KASAN_TAG_MASK) << KASAN_TAG_PGSHIFT; > | ^~~ > > > vim +/tag +612 lib/test_printf.c > > 579 > 580 static void __init > 581 page_flags_test(int section, int node, int zone, int last_cpupid, > 582 int kasan_tag, int flags, const char *name, char *cmp_buf) > 583 { > 584 unsigned long page_flags = 0; > 585 unsigned long size = 0; > 586 > 587 flags &= BIT(NR_PAGEFLAGS) - 1; > 588 if (flags) { > 589 page_flags |= flags; > 590 snprintf(cmp_buf + size, BUF_SIZE - size, "%s|", name); > 591 size = strlen(cmp_buf); > 592 } > 593 > 594 #ifdef SECTION_IN_PAGE_FLAGS > > 595 page_flags |= (sec & SECTIONS_MASK) << SECTIONS_PGSHIFT; > 596 snprintf(cmp_buf + size, BUF_SIZE - size, "section=%#x|", sec); > 597 size = strlen(cmp_buf); > 598 #endif > 599 > 600 page_flags |= ((node & NODES_MASK) << NODES_PGSHIFT) | > 601 ((zone & ZONES_MASK) << ZONES_PGSHIFT); > 602 snprintf(cmp_buf + size, BUF_SIZE - size, "node=%d|zone=%d", node, zone); > 603 size = strlen(cmp_buf); > 604 > 605 #ifndef LAST_CPUPID_NOT_IN_PAGE_FLAGS > 606 page_flags |= (last_cpupid & LAST_CPUPID_MASK) << LAST_CPUPID_PGSHIFT; > 607 snprintf(cmp_buf + size, BUF_SIZE - size, "|lastcpupid=%#x", last_cpupid); > 608 size = strlen(cmp_buf); > 609 #endif > 610 > 611 #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS) > > 612 page_flags |= (tag & KASAN_TAG_MASK) << KASAN_TAG_PGSHIFT; > 613 snprintf(cmp_buf + size, BUF_SIZE - size, "|kasantag=%#x", tag); > 614 size = strlen(cmp_buf); > 615 #endif > 616 > 617 test(cmp_buf, "%pGp", &page_flags); > 618 } > 619 > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org SECTION_IN_PAGE_FLAGS and CONFIG_KASAN_HW_TAGS are not set in my build, so I didn't catch this issue. I will post a fix.