linux-kernel - RE: [PATCH v3] uapi: Make __{u,s}64 match {u,}int64

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Date:   Tue, 21 Jun 2022 13:04:04 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Cyril Hrubis' <chrubis@...e.cz>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     "linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
        "linux-api@...r.kernel.org" <linux-api@...r.kernel.org>,
        "libc-alpha@...rceware.org" <libc-alpha@...rceware.org>,
        "arnd@...db.de" <arnd@...db.de>,
        "ltp@...ts.linux.it" <ltp@...ts.linux.it>,
        "zack@...folio.org" <zack@...folio.org>,
        "dhowells@...hat.com" <dhowells@...hat.com>
Subject: RE: [PATCH v3] uapi: Make __{u,s}64 match {u,}int64_t in userspace

From: Cyril Hrubis 
> Sent: 21 June 2022 13:04
> 
> This changes the __u64 and __s64 in userspace on 64bit platforms from
> long long (unsigned) int to just long (unsigned) int in order to match
> the uint64_t and int64_t size in userspace for C code.
> 
> We cannot make the change for C++ since that would be non-backwards
> compatible change and may cause possible regressions and even
> compilation failures, e.g. overloaded function may no longer find a
> correct match.

Isn't is enough just to mention C++ name mangling?

	David

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