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[216.228.112.21]) by smtp.gmail.com with ESMTPSA id a5sm5897048pff.219.2021.10.04.22.40.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Oct 2021 22:40:59 -0700 (PDT) From: Yury Norov To: Stephen Rothwell Cc: Yury Norov , Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mmc@vger.kernel.org, linux-perf-users@vger.kernel.org, kvm@vger.kernel.org, "James E.J. Bottomley" , Alexander Lobakin , Alexander Shishkin , Alexey Klimov , Andrea Merello , Andy Shevchenko , Arnaldo Carvalho de Melo , Arnd Bergmann , Ben Gardon , Benjamin Herrenschmidt , Brian Cain , Catalin Marinas , Christoph Lameter , Daniel Bristot de Oliveira , David Hildenbrand , Dennis Zhou , Geert Uytterhoeven , Heiko Carstens , Ian Rogers , Ingo Molnar , Jaegeuk Kim , Jakub Kicinski , Jiri Olsa , Joe Perches , Jonas Bonn , Leo Yan , Mark Rutland , Namhyung Kim , Palmer Dabbelt , Paolo Bonzini , Peter Xu , Peter Zijlstra , Petr Mladek , Rasmus Villemoes , Rich Felker , Samuel Mendoza-Jonas , Sean Christopherson , Sergey Senozhatsky , Shuah Khan , Stefan Kristiansson , Steven Rostedt , Tejun Heo , Thomas Bogendoerfer , Ulf Hansson , Will Deacon , Wolfram Sang , Yoshinori Sato , kernel test robot Subject: [PATCH 01/16] bitops: protect find_first_{,zero}_bit properly Date: Mon, 4 Oct 2021 22:40:44 -0700 Message-Id: <20211005054059.475634-2-yury.norov@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211005054059.475634-1-yury.norov@gmail.com> References: <20211005054059.475634-1-yury.norov@gmail.com> MIME-Version: 1.0 X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: CF08D1001129 X-Stat-Signature: 4mbjhe7fmmbxnrhxe4i531mksk4z6y5s Authentication-Results: imf12.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b=WOXswavy; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (imf12.hostedemail.com: domain of yury.norov@gmail.com designates 209.85.210.177 as permitted sender) smtp.mailfrom=yury.norov@gmail.com X-HE-Tag: 1633412460-812588 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: find_first_bit() and find_first_zero_bit() are not protected with ifdefs as other functions in find.h. It causes build errors on some platforms if CONFIG_GENERIC_FIND_FIRST_BIT is enabled. Signed-off-by: Yury Norov Fixes: 2cc7b6a44ac2 ("lib: add fast path for find_first_*_bit() and find_= last_bit()") Reported-by: kernel test robot Tested-by: Wolfram Sang --- include/asm-generic/bitops/find.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/asm-generic/bitops/find.h b/include/asm-generic/bito= ps/find.h index 0d132ee2a291..835f959a25f2 100644 --- a/include/asm-generic/bitops/find.h +++ b/include/asm-generic/bitops/find.h @@ -97,6 +97,7 @@ unsigned long find_next_zero_bit(const unsigned long *a= ddr, unsigned long size, =20 #ifdef CONFIG_GENERIC_FIND_FIRST_BIT =20 +#ifndef find_first_bit /** * find_first_bit - find the first set bit in a memory region * @addr: The address to start the search at @@ -116,7 +117,9 @@ unsigned long find_first_bit(const unsigned long *add= r, unsigned long size) =20 return _find_first_bit(addr, size); } +#endif =20 +#ifndef find_first_zero_bit /** * find_first_zero_bit - find the first cleared bit in a memory region * @addr: The address to start the search at @@ -136,6 +139,8 @@ unsigned long find_first_zero_bit(const unsigned long= *addr, unsigned long size) =20 return _find_first_zero_bit(addr, size); } +#endif + #else /* CONFIG_GENERIC_FIND_FIRST_BIT */ =20 #ifndef find_first_bit --=20 2.30.2