From: Matthew Wilcox <willy@infradead.org>
To: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: linux-mm@kvack.org,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Sergey Senozhatsky <senozhatsky@chromium.org>,
Petr Mladek <pmladek@suse.com>,
Steven Rostedt <rostedt@goodmis.org>,
Jonathan Corbet <corbet@lwn.net>,
Andrew Morton <akpm@linux-foundation.org>,
David Hildenbrand <david@redhat.com>,
linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org
Subject: Re: [RFC 1/2] lib/vsprintf: Add support for pte_t
Date: Tue, 24 Jun 2025 14:11:08 +0100 [thread overview]
Message-ID: <aFqj7CYRcEHFAi2e@casper.infradead.org> (raw)
In-Reply-To: <d5a86ef8-a58c-4abc-8312-08406c847edc@arm.com>
On Fri, Jun 20, 2025 at 01:42:53PM +0530, Anshuman Khandual wrote:
> On 19/06/25 6:56 PM, Matthew Wilcox wrote:
> > Unfortunately, the one example you've converted shows why this is a bad
> > idea. You're passing a pmd_t pointer to a function which is assuming a
> > pte_t pointer. And a pmd_t and a pte_t are sometimes different sizes!
> > (eg sometimes one is 64 bit and the other 32 bit).
>
> As discussed on a separate thread, this might be addressed via separate
> printf formats for each page table level e.g %ppte, %ppmd, and %ppud etc.
There's still no typechecking!
next prev parent reply other threads:[~2025-06-24 13:14 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-18 4:12 [RFC 0/2] lib/vsprintf: Add support for pte_t Anshuman Khandual
2025-06-18 4:12 ` [RFC 1/2] " Anshuman Khandual
2025-06-18 8:18 ` David Hildenbrand
2025-06-18 8:37 ` Anshuman Khandual
2025-06-18 8:44 ` David Hildenbrand
2025-06-18 18:16 ` Pedro Falcato
2025-06-19 13:08 ` Petr Mladek
2025-06-20 6:00 ` Anshuman Khandual
2025-06-18 8:19 ` David Hildenbrand
2025-06-18 8:33 ` Anshuman Khandual
2025-06-18 8:43 ` David Hildenbrand
2025-06-20 6:30 ` Anshuman Khandual
2025-06-18 17:46 ` Andy Shevchenko
2025-06-19 9:35 ` Anshuman Khandual
2025-06-19 12:00 ` Andy Shevchenko
2025-06-20 6:53 ` Anshuman Khandual
2025-06-21 19:14 ` Andy Shevchenko
2025-06-19 13:12 ` Petr Mladek
2025-06-20 6:38 ` Anshuman Khandual
2025-06-18 18:19 ` Pedro Falcato
2025-06-19 9:53 ` Anshuman Khandual
2025-06-19 13:26 ` Matthew Wilcox
2025-06-20 8:12 ` Anshuman Khandual
2025-06-24 13:11 ` Matthew Wilcox [this message]
2025-06-24 14:23 ` Steven Rostedt
2025-06-19 14:01 ` Petr Mladek
2025-06-20 8:02 ` Anshuman Khandual
2025-06-24 10:48 ` Petr Mladek
2025-06-24 13:09 ` Andy Shevchenko
2025-06-18 4:12 ` [RFC 2/2] kunit: printf: Add test case " Anshuman Khandual
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