linux-kernel - RE: [PATCH net-next 08/10] bus: mvenus-mbus: Fix size test for mvebu_mbus_get_dram_win

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Date:	Thu, 14 Jan 2016 14:00:21 +0000
From:	David Laight <David.Laight@...LAB.COM>
To:	'Gregory CLEMENT' <gregory.clement@...e-electrons.com>,
	"David S. Miller" <davem@...emloft.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Florian Fainelli <f.fainelli@...il.com>
CC:	Jason Cooper <jason@...edaemon.net>, Andrew Lunn <andrew@...n.ch>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Lior Amsalem <alior@...vell.com>,
	Nadav Haklai <nadavh@...vell.com>,
	Marcin Wojtas <mw@...ihalf.com>,
	"Simon Guinot" <simon.guinot@...uanux.org>,
	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Boris BREZILLON <boris.brezillon@...e-electrons.com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Willy Tarreau <w@....eu>, Arnd Bergmann <arnd@...db.de>
Subject: RE: [PATCH net-next 08/10] bus: mvenus-mbus: Fix size test for
 mvebu_mbus_get_dram_win_info

From: Gregory CLEMENT
> Sent: 12 January 2016 19:11
> Signed-off-by: Gregory CLEMENT <gregory.clement@...e-electrons.com>
> ---
>  drivers/bus/mvebu-mbus.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/bus/mvebu-mbus.c b/drivers/bus/mvebu-mbus.c
> index 3d1c0c3880ec..214bb964165b 100644
> --- a/drivers/bus/mvebu-mbus.c
> +++ b/drivers/bus/mvebu-mbus.c
> @@ -964,7 +964,7 @@ int mvebu_mbus_get_dram_win_info(phys_addr_t phyaddr, u8 *target, u8 *attr)
>  	for (i = 0; i < dram->num_cs; i++) {
>  		const struct mbus_dram_window *cs = dram->cs + i;
> 
> -		if (cs->base <= phyaddr && phyaddr <= (cs->base + cs->size)) {
> +		if (cs->base <= phyaddr && phyaddr <= (cs->base + cs->size - 1)) {

Wouldn't it be better to change the line to:
> +		if (cs->base <= phyaddr && phyaddr < (cs->base + cs->size)) {

	David