netdev - Re: [PATCH v4 4/7] lib/hexdump.c: Replace ascii bool in hex_dump_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] [thread-next>] [day] [month] [year] [list]

Message-ID: <3340b520a57e00a483eae170be97316c8d18c22c.camel@perches.com>
Date:   Mon, 24 Jun 2019 22:01:40 -0700
From:   Joe Perches <joe@...ches.com>
To:     Alastair D'Silva <alastair@....ibm.com>, alastair@...ilva.org
Cc:     Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Karsten Keil <isdn@...ux-pingi.de>,
        Jassi Brar <jassisinghbrar@...il.com>,
        Tom Lendacky <thomas.lendacky@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Jose Abreu <Jose.Abreu@...opsys.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        Stanislaw Gruszka <sgruszka@...hat.com>,
        Benson Leung <bleung@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        David Laight <David.Laight@...LAB.COM>,
        Andrew Morton <akpm@...ux-foundation.org>,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        ath10k@...ts.infradead.org, linux-wireless@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-fbdev@...r.kernel.org,
        devel@...verdev.osuosl.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v4 4/7] lib/hexdump.c: Replace ascii bool in
 hex_dump_to_buffer with flags

On Tue, 2019-06-25 at 13:17 +1000, Alastair D'Silva wrote:
> From: Alastair D'Silva <alastair@...ilva.org>
> 
> In order to support additional features, rename hex_dump_to_buffer to
> hex_dump_to_buffer_ext, and replace the ascii bool parameter with flags.
[]
> diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
[]
> @@ -1338,9 +1338,8 @@ static void hexdump(struct drm_printer *m, const void *buf, size_t len)
>  		}
>  
>  		WARN_ON_ONCE(hex_dump_to_buffer(buf + pos, len - pos,
> -						rowsize, sizeof(u32),
> -						line, sizeof(line),
> -						false) >= sizeof(line));
> +						rowsize, sizeof(u32), line,
> +						sizeof(line)) >= sizeof(line));

Huh?  Why do this?

> diff --git a/drivers/isdn/hardware/mISDN/mISDNisar.c b/drivers/isdn/hardware/mISDN/mISDNisar.c
[]
> @@ -70,8 +70,9 @@ send_mbox(struct isar_hw *isar, u8 his, u8 creg, u8 len, u8 *msg)
>  			int l = 0;
>  
>  			while (l < (int)len) {
> -				hex_dump_to_buffer(msg + l, len - l, 32, 1,
> -						   isar->log, 256, 1);
> +				hex_dump_to_buffer_ext(msg + l, len - l, 32, 1,
> +						       isar->log, 256,
> +						       HEXDUMP_ASCII);

Again, why do any of these?

The point of the wrapper is to avoid changing these.