From: David Laight <David.Laight@ACULAB.COM>
To: 'Ard Biesheuvel' <ardb@kernel.org>,
Russell King - ARM Linux admin <linux@armlinux.org.uk>
Cc: Nicolas Pitre <nico@fluxnic.net>, Antony Yu <swpenim@gmail.com>,
Nick Desaulniers <ndesaulniers@google.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
clang-built-linux <clang-built-linux@googlegroups.com>,
Nathan Chancellor <natechancellor@gmail.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: RE: [RESEND,PATCH] ARM: fix __div64_32() error when compiling with clang
Date: Mon, 30 Nov 2020 13:58:27 +0000 [thread overview]
Message-ID: <ca83a5acdf514169b2fde3ec12ea59fd@AcuMS.aculab.com> (raw)
In-Reply-To: <CAMj1kXHuERnB01sNrpY9w3C0ECOry7jCK=A2H0D4-_cBXbOmcw@mail.gmail.com>
> And actually, the same applies on BE, but the other way around. So we
> should mark __xl as an output register as well, as __xl will assume
> the right value depending on the endianness.
Why not use "+r" to indicate than an 'output' parameter is also
used as an input.
Rather cleaner than specifying the same C variable as both
input and output.
David
-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)
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next prev parent reply other threads:[~2020-11-30 13:59 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-23 7:36 [RESEND,PATCH] ARM: fix __div64_32() error when compiling with clang Antony Yu
2020-11-23 18:16 ` Nathan Chancellor
[not found] ` <20201124074211.GA26157@penyung-VirtualBox>
2020-11-24 10:14 ` [RESEND, PATCH] " Antony Yu
2020-11-24 21:06 ` Nick Desaulniers
2020-11-30 8:20 ` [PATCH v2] " Antony Yu
2020-11-24 23:16 ` [RESEND,PATCH] " kernel test robot
2020-11-30 10:11 ` [RESEND, PATCH] " Ard Biesheuvel
2020-11-30 10:12 ` Ard Biesheuvel
2020-11-30 10:21 ` [RESEND,PATCH] " Russell King - ARM Linux admin
2020-11-30 10:40 ` [RESEND, PATCH] " Ard Biesheuvel
2020-11-30 13:58 ` David Laight [this message]
2020-11-30 14:18 ` [RESEND,PATCH] " Russell King - ARM Linux admin
2020-11-30 15:50 ` Nicolas Pitre
2020-11-30 17:18 ` [RESEND, PATCH] " Ard Biesheuvel
2020-11-30 17:52 ` [RESEND,PATCH] " Nicolas Pitre
2020-11-30 18:08 ` [RESEND, PATCH] " Ard Biesheuvel
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