[kbuild-all] [android-goldfish:android-5.4 1/3] lib/test_printf.c:584:16: sparse: sparse: restricted gfp_t degrades to integer

tree: https://android.googlesource.com/kernel/goldfish android-5.4 head: bb34193d1edc2c8a5ac87ac59d8e410632fc092f commit: b9d3d8f1e991052edb89b0537b8f2e8b2aa941ac [1/3] ANDROID: GKI: cma: redirect page allocation to CMA config: i386-randconfig-s002-20210720 (attached as .config) compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-341-g8af24329-dirty git remote add android-goldfish https://android.googlesource.com/kernel/goldfish git fetch --no-tags android-goldfish android-5.4 git checkout b9d3d8f1e991052edb89b0537b8f2e8b2aa941ac # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) lib/test_printf.c:584:13: sparse: expected restricted gfp_t [addressable] [assigned] [usertype] gfp lib/test_printf.c:584:13: sparse: got unsigned int lib/test_printf.c:585:49: sparse: sparse: cast from restricted gfp_t lib/test_printf.c:589:58: sparse: sparse: cast from restricted gfp_t vim +584 lib/test_printf.c 707cc7280f452a Rasmus Villemoes 2015-11-06 546 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 547 static void __init edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 548 flags(void) edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 549 { edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 550 unsigned long flags; edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 551 gfp_t gfp; edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 552 char *cmp_buffer; edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 553 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 554 flags = 0; edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 555 test("", "%pGp", &flags); edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 556 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 557 /* Page flags should filter the zone id */ edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 558 flags = 1UL << NR_PAGEFLAGS; edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 559 test("", "%pGp", &flags); edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 560 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 561 flags |= 1UL << PG_uptodate | 1UL << PG_dirty | 1UL << PG_lru edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 562 | 1UL << PG_active | 1UL << PG_swapbacked; edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 563 test("uptodate|dirty|lru|active|swapbacked", "%pGp", &flags); edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 564 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 565 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 566 flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 567 | VM_DENYWRITE; edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 568 test("read|exec|mayread|maywrite|mayexec|denywrite", "%pGv", &flags); edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 569 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 570 gfp = GFP_TRANSHUGE; edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 571 test("GFP_TRANSHUGE", "%pGg", &gfp); edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 572 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 573 gfp = GFP_ATOMIC|__GFP_DMA; edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 574 test("GFP_ATOMIC|GFP_DMA", "%pGg", &gfp); edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 575 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 576 gfp = __GFP_ATOMIC; edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 577 test("__GFP_ATOMIC", "%pGg", &gfp); edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 578 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 579 cmp_buffer = kmalloc(BUF_SIZE, GFP_KERNEL); edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 580 if (!cmp_buffer) edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 581 return; edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 582 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 583 /* Any flags not translated by the table should remain numeric */ edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 @584 gfp = ~__GFP_BITS_MASK; edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 585 snprintf(cmp_buffer, BUF_SIZE, "%#lx", (unsigned long) gfp); edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 586 test(cmp_buffer, "%pGg", &gfp); edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 587 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 588 snprintf(cmp_buffer, BUF_SIZE, "__GFP_ATOMIC|%#lx", edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 589 (unsigned long) gfp); edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 590 gfp |= __GFP_ATOMIC; edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 591 test(cmp_buffer, "%pGg", &gfp); edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 592 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 593 kfree(cmp_buffer); edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 594 } edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 595 :::::: The code at line 584 was first introduced by commit :::::: edf14cdbf9a0e5ab52698ca66d07a76ade0d5c46 mm, printk: introduce new format string for flags :::::: TO: Vlastimil Babka <vbabka(a)suse.cz&gt; :::::: CC: Linus Torvalds <torvalds(a)linux-foundation.org&gt; 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