linux-kernel - Re: [PATCH] dma: use %pa to print dma_addr

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]

Date:	Thu, 12 Sep 2013 10:05:32 -0700
From:	Randy Dunlap <rdunlap@...radead.org>
To:	Olof Johansson <olof@...om.net>
CC:	Dan Williams <dan.j.williams@...el.com>,
	Vinod Koul <vinod.koul@...el.com>,
	Shawn Guo <shawn.guo@...aro.org>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] dma: use %pa to print dma_addr_t

On 09/11/13 21:38, Olof Johansson wrote:
> This resolves some warnings seen when building with CONFIG_ARM_LPAE=y, since
> dma_addr_t might then be 64-bit:
> 
>   drivers/dma/imx-sdma.c:1092:3: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t' [-Wformat=]
>   drivers/dma/imx-sdma.c:1166:3: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t' [-Wformat=]
>   drivers/dma/imx-dma.c:579:3: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t' [-Wformat=]
>   drivers/dma/imx-dma.c:579:3: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t' [-Wformat=]
>   drivers/dma/imx-dma.c:593:4: warning: format '%x' expects argument of type 'unsigned int', but argument 9 has type 'dma_addr_t' [-Wformat=]
>   drivers/dma/imx-dma.c:603:4: warning: format '%x' expects argument of type 'unsigned int', but argument 9 has type 'dma_addr_t' [-Wformat=]
>   drivers/dma/imx-dma.c:930:2: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t' [-Wformat=]
>   drivers/dma/imx-dma.c:930:2: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t' [-Wformat=]
>   drivers/dma/imx-dma.c:960:2: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t' [-Wformat=]
>   drivers/dma/imx-dma.c:960:2: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t' [-Wformat=]
>   drivers/dma/ipu/ipu_idmac.c:1235:2: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'dma_addr_t' [-Wformat=]


I've been tempted to make similar patches, but CONFIG_PHYS_ADDR_T_64BIT
and CONFIG_ARCH_DMA_ADDR_T_64BIT are independent AFAICT,
and %pa is for physical addresses, not necessarily DMA addresses.

Am I confused?


-- 
~Randy
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/