linux-kernel - Re: [PATCH 06/12] cifs: Pass a pointer to virt_to

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <bd2abfae-b8d8-2416-57aa-49da7a9915dd@talpey.com>
Date:   Wed, 17 May 2023 10:01:04 -0400
From:   Tom Talpey <tom@...pey.com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Vineet Gupta <vgupta@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Russell King <linux@...linux.org.uk>,
        Greg Ungerer <gerg@...ux-m68k.org>
Cc:     linux-kernel@...r.kernel.org, linux-m68k@...ts.linux-m68k.org,
        linux-snps-arc@...ts.infradead.org, linux-fsdevel@...r.kernel.org,
        linux-cifs@...r.kernel.org, samba-technical@...ts.samba.org,
        linux-arm-kernel@...ts.infradead.org, linux-arch@...r.kernel.org
Subject: Re: [PATCH 06/12] cifs: Pass a pointer to virt_to_page() in cifsglob

On 5/11/2023 7:59 AM, Linus Walleij wrote:
> Like the other calls in this function virt_to_page() expects
> a pointer, not an integer.
> 
> However since many architectures implement virt_to_pfn() as
> a macro, this function becomes polymorphic and accepts both a
> (unsigned long) and a (void *).
> 
> Fix this up with an explicit cast.
> 
> Signed-off-by: Linus Walleij <linus.walleij@...aro.org>


For fs/cifs:

Acked-by: Tom Talpey <tom@...pey.com>

> ---
>   fs/cifs/cifsglob.h | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
> index 414685c5d530..3d29a4bbbc40 100644
> --- a/fs/cifs/cifsglob.h
> +++ b/fs/cifs/cifsglob.h
> @@ -2218,7 +2218,7 @@ static inline void cifs_sg_set_buf(struct sg_table *sgtable,
>   		} while (buflen);
>   	} else {
>   		sg_set_page(&sgtable->sgl[sgtable->nents++],
> -			    virt_to_page(addr), buflen, off);
> +			    virt_to_page((void *)addr), buflen, off);
>   	}
>   }
>   
>