From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anshuman Khandual Subject: Re: linux-next: build warnings after merge of the block tree Date: Thu, 1 Mar 2018 09:32:20 +0530 Message-ID: <1f3b4275-b346-d768-681e-b180ec351140@linux.vnet.ibm.com> References: <20180301112624.652612c7@canb.auug.org.au> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20180301112624.652612c7@canb.auug.org.au> Sender: linux-kernel-owner@vger.kernel.org To: Stephen Rothwell , Jens Axboe Cc: Linux-Next Mailing List , Linux Kernel Mailing List List-Id: linux-next.vger.kernel.org On 03/01/2018 05:56 AM, Stephen Rothwell wrote: > Hi Jens, > > After merging the block tree, today's linux-next build (x86_64 > allmodconfig) produced these warning: > > In file included from drivers/misc/cardreader/rts5209.c:24:0: > include/linux/rtsx_pci.h:40:0: warning: "SG_END" redefined > #define SG_END 0x02 > > In file included from include/linux/dmapool.h:14:0, > from include/linux/pci.h:1311, > from include/linux/rtsx_pci.h:26, > from drivers/misc/cardreader/rts5209.c:24: > include/linux/scatterlist.h:69:0: note: this is the location of the previous definition > #define SG_END 0x02UL > > In file included from drivers/staging/rts5208/rtsx.h:180:0, > from drivers/staging/rts5208/rtsx.c:28: > drivers/staging/rts5208/rtsx_chip.h:343:0: warning: "SG_END" redefined > #define SG_END 0x02 > > In file included from include/linux/blkdev.h:28:0, > from drivers/staging/rts5208/rtsx.c:23: > include/linux/scatterlist.h:69:0: note: this is the location of the previous definition > #define SG_END 0x02UL > > > and many more the same. > > Introduced by commit > > 723fbf563a6a ("lib/scatterlist: Add SG_CHAIN and SG_END macros for LSB encodings") IIRC this was already detected and hence sent a new version changing this to SG_LAST. https://patchwork.kernel.org/patch/10227897/