On 8/26/19 12:08 AM, kbuild test robot wrote: > Hi Waiman, > > Thank you for the patch! Yet something to improve: > > [auto build test ERROR on linus/master] > [cannot apply to v5.3-rc6 next-20190823] > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] > > url: https://github.com/0day-ci/linux/commits/Waiman-Long/fs-proc-page-Skip-uninitialized-page-when-iterating-page-structures/20190826-105836 > config: x86_64-lkp (attached as .config) > compiler: gcc-7 (Debian 7.4.0-10) 7.4.0 > reproduce: > # save the attached .config to linux build tree > make ARCH=x86_64 > > If you fix the issue, kindly add following tag > Reported-by: kbuild test robot <lkp@xxxxxxxxx> > > All errors (new ones prefixed by >>): > > fs/proc/page.c: In function 'find_next_zone_range': >>> fs/proc/page.c:58:2: error: expected ';' before 'for' > for (pgdat = first_online_pgdat(); pgdat; > ^~~ > fs/proc/page.c:52:6: warning: unused variable 'i' [-Wunused-variable] > int i; > ^ > fs/proc/page.c:51:15: warning: unused variable 'zone' [-Wunused-variable] > struct zone *zone; > ^~~~ > fs/proc/page.c:50:13: warning: unused variable 'pgdat' [-Wunused-variable] > pg_data_t *pgdat; > ^~~~~ > fs/proc/page.c: In function 'pfn_in_zone': >>> fs/proc/page.c:79:23: error: 'struct zone_range' has no member named 'start'; did you mean 'pfn_start'? > return pfn >= range->start && pfn < range->end; > ^~~~~ > pfn_start >>> fs/proc/page.c:79:43: error: 'struct zone_range' has no member named 'end' > return pfn >= range->start && pfn < range->end; > ^~ > fs/proc/page.c:80:1: warning: control reaches end of non-void function [-Wreturn-type] > } > ^ > > vim +58 fs/proc/page.c > > 46 > 47 static void find_next_zone_range(struct zone_range *range) > 48 { > 49 unsigned long start, end; > > 50 pg_data_t *pgdat; > > 51 struct zone *zone; > 52 int i; > 53 > 54 /* > 55 * Scan all the zone structures to find the next closest one. > 56 */ > 57 start = end = -1UL > > 58 for (pgdat = first_online_pgdat(); pgdat; > 59 pgdat = next_online_pgdat(pgdat)) { > 60 for (zone = pgdat->node_zones, i = 0; i < MAX_NR_ZONES; > 61 zone++, i++) { > 62 if (!zone->spanned_pages) > 63 continue; > 64 if ((zone->zone_start_pfn >= range->pfn_end) && > 65 (zone->zone_start_pfn < start)) { > 66 start = zone->zone_start_pfn; > 67 end = start + zone->spanned_pages; > 68 } > 69 } > 70 } > 71 range->pfn_start = start; > 72 range->pfn_end = end; > 73 } > 74 > 75 static inline bool pfn_in_zone(unsigned long pfn, struct zone_range *range) > 76 { > 77 if (pfn >= range->pfn_end) > 78 find_next_zone_range(range); > > 79 return pfn >= range->start && pfn < range->end; > 80 } > 81 > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation Sorry, I have accidentally sent the old version with syntax error out. Has posted the right one in v2. Cheers, Longman