linux-kernel - Re: [PATCH v5 1/4] tracing: Enforce the persistent ring buffer to be page aligned

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Message-ID: <20250402102614.419cbb03@gandalf.local.home>
Date: Wed, 2 Apr 2025 10:26:14 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Mike Rapoport <rppt@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org, Linus
 Torvalds <torvalds@...ux-foundation.org>, Masami Hiramatsu
 <mhiramat@...nel.org>, Mark Rutland <mark.rutland@....com>, Mathieu
 Desnoyers <mathieu.desnoyers@...icios.com>, Andrew Morton
 <akpm@...ux-foundation.org>, Vincent Donnefort <vdonnefort@...gle.com>,
 Vlastimil Babka <vbabka@...e.cz>, Jann Horn <jannh@...gle.com>
Subject: Re: [PATCH v5 1/4] tracing: Enforce the persistent ring buffer to
 be page aligned

On Wed, 2 Apr 2025 12:21:49 +0300
Mike Rapoport <rppt@...nel.org> wrote:

> > +			if (size & ~PAGE_MASK) {
> > +				pr_warn("Tracing: mapping size %lx is not page aligned\n",
> > +					(unsigned long)size);
> > +				continue;
> > +			}  
> 
> Better use %pa for printing physical address as on 32-bit systems
> phys_addr_t may be unsigned long long:
> 
> 	pr_warn("Tracing: mapping size %pa is not page aligned\n", &size);

Thanks, will update.

-- Steve