From: kernel test robot <lkp@intel.com>
To: Nick Desaulniers <ndesaulniers@google.com>,
"Gustavo A . R . Silva" <gustavoars@kernel.org>,
Nathan Chancellor <natechancellor@gmail.com>,
Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
Michael Ellerman <mpe@ellerman.id.au>
Cc: kbuild-all@lists.01.org,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
clang-built-linux@googlegroups.com,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
Nick Desaulniers <ndesaulniers@google.com>
Subject: Re: [PATCH 2/3] Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"
Date: Mon, 16 Nov 2020 19:49:38 +0800 [thread overview]
Message-ID: <202011161921.dTMoUx2K-lkp@intel.com> (raw)
In-Reply-To: <20201116043532.4032932-3-ndesaulniers@google.com>
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Hi Nick,
I love your patch! Perhaps something to improve:
[auto build test WARNING on powerpc/next]
[also build test WARNING on linus/master v5.10-rc4 next-20201116]
[cannot apply to pmladek/for-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Nick-Desaulniers/PPC-Fix-Wimplicit-fallthrough-for-clang/20201116-123803
base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: x86_64-randconfig-m001-20201115 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
smatch warnings:
lib/zstd/huf_compress.c:559 HUF_compress1X_usingCTable() warn: inconsistent indenting
vim +559 lib/zstd/huf_compress.c
529
530 #define HUF_FLUSHBITS_1(stream) \
531 if (sizeof((stream)->bitContainer) * 8 < HUF_TABLELOG_MAX * 2 + 7) \
532 HUF_FLUSHBITS(stream)
533
534 #define HUF_FLUSHBITS_2(stream) \
535 if (sizeof((stream)->bitContainer) * 8 < HUF_TABLELOG_MAX * 4 + 7) \
536 HUF_FLUSHBITS(stream)
537
538 size_t HUF_compress1X_usingCTable(void *dst, size_t dstSize, const void *src, size_t srcSize, const HUF_CElt *CTable)
539 {
540 const BYTE *ip = (const BYTE *)src;
541 BYTE *const ostart = (BYTE *)dst;
542 BYTE *const oend = ostart + dstSize;
543 BYTE *op = ostart;
544 size_t n;
545 BIT_CStream_t bitC;
546
547 /* init */
548 if (dstSize < 8)
549 return 0; /* not enough space to compress */
550 {
551 size_t const initErr = BIT_initCStream(&bitC, op, oend - op);
552 if (HUF_isError(initErr))
553 return 0;
554 }
555
556 n = srcSize & ~3; /* join to mod 4 */
557 switch (srcSize & 3) {
558 case 3: HUF_encodeSymbol(&bitC, ip[n + 2], CTable); HUF_FLUSHBITS_2(&bitC);
> 559 fallthrough;
560 case 2: HUF_encodeSymbol(&bitC, ip[n + 1], CTable); HUF_FLUSHBITS_1(&bitC);
561 fallthrough;
562 case 1: HUF_encodeSymbol(&bitC, ip[n + 0], CTable); HUF_FLUSHBITS(&bitC);
563 case 0:
564 default:;
565 }
566
567 for (; n > 0; n -= 4) { /* note : n&3==0 at this stage */
568 HUF_encodeSymbol(&bitC, ip[n - 1], CTable);
569 HUF_FLUSHBITS_1(&bitC);
570 HUF_encodeSymbol(&bitC, ip[n - 2], CTable);
571 HUF_FLUSHBITS_2(&bitC);
572 HUF_encodeSymbol(&bitC, ip[n - 3], CTable);
573 HUF_FLUSHBITS_1(&bitC);
574 HUF_encodeSymbol(&bitC, ip[n - 4], CTable);
575 HUF_FLUSHBITS(&bitC);
576 }
577
578 return BIT_closeCStream(&bitC);
579 }
580
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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next prev parent reply other threads:[~2020-11-16 12:38 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-16 4:35 [PATCH 0/3] PPC: Fix -Wimplicit-fallthrough for clang Nick Desaulniers
2020-11-16 4:35 ` [PATCH 1/3] powerpc: boot: include compiler_attributes.h Nick Desaulniers
2020-11-16 6:25 ` Gustavo A. R. Silva
2020-11-16 11:24 ` Miguel Ojeda
2020-11-17 3:01 ` Nathan Chancellor
2020-11-17 22:30 ` Arvind Sankar
2020-11-17 23:46 ` Michael Ellerman
2020-11-16 4:35 ` [PATCH 2/3] Revert "lib: Revert use of fallthrough pseudo-keyword in lib/" Nick Desaulniers
2020-11-16 6:26 ` Gustavo A. R. Silva
2020-11-16 11:18 ` Miguel Ojeda
2020-11-16 11:26 ` Miguel Ojeda
2020-11-16 11:49 ` kernel test robot [this message]
2020-11-17 3:02 ` Nathan Chancellor
2020-11-17 19:10 ` Nick Desaulniers
2020-11-17 22:16 ` Gustavo A. R. Silva
2020-11-17 22:28 ` Nick Desaulniers
2020-11-17 23:45 ` Gustavo A. R. Silva
2020-11-17 23:48 ` Michael Ellerman
2020-11-16 4:35 ` [PATCH 3/3] powerpc: fix -Wimplicit-fallthrough Nick Desaulniers
2020-11-16 6:28 ` Gustavo A. R. Silva
2020-11-16 11:33 ` Miguel Ojeda
2020-11-17 3:02 ` Nathan Chancellor
2020-11-17 23:46 ` Michael Ellerman
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