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Date: Fri, 1 Oct 2021 11:12:11 -0700 From: Yury Norov <yury.norov@...il.com> To: Stephen Rothwell <sfr@...b.auug.org.au> Cc: Yury Norov <yury.norov@...il.com>, Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org, linux-mm@...ck.org, linux-arch@...r.kernel.org, linux-kselftest@...r.kernel.org, linux-mmc@...r.kernel.org, linux-perf-users@...r.kernel.org, kvm@...r.kernel.org, "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>, Alexander Lobakin <alobakin@...me>, Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Alexey Klimov <aklimov@...hat.com>, Andrea Merello <andrea.merello@...il.com>, Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Arnaldo Carvalho de Melo <acme@...hat.com>, Arnd Bergmann <arnd@...db.de>, Ben Gardon <bgardon@...gle.com>, Benjamin Herrenschmidt <benh@...nel.crashing.org>, Brian Cain <bcain@...eaurora.org>, Catalin Marinas <catalin.marinas@....com>, Christoph Lameter <cl@...ux.com>, Daniel Bristot de Oliveira <bristot@...hat.com>, David Hildenbrand <david@...hat.com>, Dennis Zhou <dennis@...nel.org>, Geert Uytterhoeven <geert@...ux-m68k.org>, Heiko Carstens <hca@...ux.ibm.com>, Ian Rogers <irogers@...gle.com>, Ingo Molnar <mingo@...hat.com>, Jaegeuk Kim <jaegeuk@...nel.org>, Jakub Kicinski <kuba@...nel.org>, Jiri Olsa <jolsa@...hat.com>, Joe Perches <joe@...ches.com>, Jonas Bonn <jonas@...thpole.se>, Leo Yan <leo.yan@...aro.org>, Mark Rutland <mark.rutland@....com>, Namhyung Kim <namhyung@...nel.org>, Palmer Dabbelt <palmer@...belt.com>, Paolo Bonzini <pbonzini@...hat.com>, Peter Xu <peterx@...hat.com>, Peter Zijlstra <peterz@...radead.org>, Petr Mladek <pmladek@...e.com>, Rasmus Villemoes <linux@...musvillemoes.dk>, Rich Felker <dalias@...c.org>, Samuel Mendoza-Jonas <sam@...dozajonas.com>, Sean Christopherson <seanjc@...gle.com>, Sergey Senozhatsky <senozhatsky@...omium.org>, Shuah Khan <shuah@...nel.org>, Stefan Kristiansson <stefan.kristiansson@...nalahti.fi>, Steven Rostedt <rostedt@...dmis.org>, Tejun Heo <tj@...nel.org>, Thomas Bogendoerfer <tsbogend@...ha.franken.de>, Ulf Hansson <ulf.hansson@...aro.org>, Will Deacon <will@...nel.org>, Wolfram Sang <wsa+renesas@...g-engineering.com>, Yoshinori Sato <ysato@...rs.sourceforge.jp>, kernel test robot <lkp@...el.com> Subject: [PATCH 01/16] bitops: protect find_first_{,zero}_bit properly 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 <yury.norov@...il.com> Fixes: 2cc7b6a44ac2 ("lib: add fast path for find_first_*_bit() and find_last_bit()") Reported-by: kernel test robot <lkp@...el.com> Tested-by: Wolfram Sang <wsa+renesas@...g-engineering.com> --- 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/bitops/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 *addr, unsigned long size, #ifdef CONFIG_GENERIC_FIND_FIRST_BIT +#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 *addr, unsigned long size) return _find_first_bit(addr, size); } +#endif +#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) return _find_first_zero_bit(addr, size); } +#endif + #else /* CONFIG_GENERIC_FIND_FIRST_BIT */ #ifndef find_first_bit -- 2.30.2
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