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Message-ID: <CAJcbSZGcL9G4edsa3LEr-f0srpZPtsDTOeOjCC_nJddn6SOskg@mail.gmail.com> Date: Wed, 3 Aug 2016 08:29:42 -0700 From: Thomas Garnier <thgarnie@...gle.com> To: Yinghai Lu <yinghai@...nel.org> Cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, "H . Peter Anvin" <hpa@...or.com>, Kees Cook <keescook@...omium.org>, "Rafael J . Wysocki" <rjw@...ysocki.net>, Pavel Machek <pavel@....cz>, "the arch/x86 maintainers" <x86@...nel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linux PM list <linux-pm@...r.kernel.org>, "kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com> Subject: Re: [PATCH v1 1/2] x86/power/64: Support unaligned addresses for temporary mapping On Tue, Aug 2, 2016 at 12:55 PM, Yinghai Lu <yinghai@...nel.org> wrote: > On Tue, Aug 2, 2016 at 10:48 AM, Thomas Garnier <thgarnie@...gle.com> wrote: >> On Tue, Aug 2, 2016 at 10:36 AM, Yinghai Lu <yinghai@...nel.org> wrote: >>> >>> Looks like we need to change the loop from phys address to virtual >>> address instead. >>> to avoid the overflow. > > something like attached. I tested it and it worked well. I just got this warning on build: In file included from arch/x86/mm/init_64.c:60:0: arch/x86/mm/ident_map.c: In function ‘ident_pmd_init’: arch/x86/mm/ident_map.c:18:29: warning: suggest parentheses around arithmetic in operand of ‘|’ [-Wparentheses] set_pmd(pmd, __pmd(vaddr - off | info->pmd_flag)); Do you want to resend your version for integration?
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