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From: David.Laight@ACULAB.COM (David Laight)
To: linux-snps-arc@lists.infradead.org
Subject: [PATCH 5/5] Lib: sort.h: replace int size with size_t size in the swap function
Date: Mon, 1 Apr 2019 14:47:55 +0000	[thread overview]
Message-ID: <cd57af9a2c1e494cbc8631a0347831dc@AcuMS.aculab.com> (raw)
In-Reply-To: <20190331105412.GA9393@kroah.com>

From: gregkh@linuxfoundation.org
> Sent: 31 March 2019 11:54
...
> Yes, "int" is a very nice variable for "size", you need to explain why
> it is better to use size_t here please.

Actually, on x86_64 you probably want 'unsigned int' to avoid the
compiler having to generate a sign-extending register move if the
value is ever used in a 64bit expression (eg an address calculation).

	David

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Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)

  reply	other threads:[~2019-04-01 14:47 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-30 16:37 [PATCH 0/5] simple sort swap function usage improvements Andrey Abramov
2019-03-30 16:40 ` [PATCH 1/5] arch/arc: unwind.c: replace swap function with built-in one Andrey Abramov
2019-03-30 16:41 ` [PATCH 2/5] powerpc: module_[32|64].c: " Andrey Abramov
2019-03-30 16:42 ` [PATCH 3/5] ocfs2: dir, refcounttree, xattr: replace swap functions " Andrey Abramov
2019-03-30 16:43 ` [PATCH 4/5] ubifs: find.c: replace swap function " Andrey Abramov
2019-03-30 16:43 ` [PATCH 5/5] Lib: sort.h: replace int size with size_t size in the swap function Andrey Abramov
2019-03-30 18:38   ` gregkh
2019-03-30 20:15     ` George Spelvin
2019-03-30 20:24       ` Greg KH
2019-03-30 21:49         ` George Spelvin
2019-03-31  7:00       ` Andrey Abramov
2019-03-31 10:54         ` gregkh
2019-04-01 14:47           ` David Laight [this message]
2019-04-01 18:01             ` Vineet Gupta
2019-04-01 18:14               ` Andrey Abramov
2019-04-01 18:22                 ` Vineet Gupta
2019-03-30 17:16 ` [PATCH 0/5] simple sort swap function usage improvements George Spelvin
2019-03-30 18:32 ` Andy Shevchenko

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