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Date: Thu, 2 Nov 2017 16:03:26 +0100 From: Ulf Hansson <ulf.hansson@...aro.org> To: Doug Anderson <dianders@...omium.org> Cc: Stephen Rothwell <sfr@...b.auug.org.au>, Linux-Next Mailing List <linux-next@...r.kernel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Shawn Lin <shawn.lin@...k-chips.com> Subject: Re: linux-next: build warning after merge of the mmc tree On 2 November 2017 at 02:47, Doug Anderson <dianders@...omium.org> wrote: > Hi, > > On Wed, Nov 1, 2017 at 6:36 PM, Stephen Rothwell <sfr@...b.auug.org.au> wrote: >> Hi Ulf, >> >> After merging the mmc tree, today's linux-next build (arm >> multi_v7_defconfig) produced this warning: >> >> In file included from include/linux/irqflags.h:14:0, >> from arch/arm/include/asm/bitops.h:27, >> from include/linux/bitops.h:37, >> from include/linux/kernel.h:10, >> from include/asm-generic/bug.h:15, >> from arch/arm/include/asm/bug.h:59, >> from include/linux/bug.h:4, >> from include/linux/thread_info.h:11, >> from include/asm-generic/current.h:4, >> from ./arch/arm/include/generated/asm/current.h:1, >> from include/linux/sched.h:11, >> from include/linux/blkdev.h:4, >> from drivers/mmc/host/dw_mmc.c:14: >> drivers/mmc/host/dw_mmc.c: In function 'dw_mci_set_drto': >> include/linux/typecheck.h:11:18: warning: comparison of distinct pointer types lacks a cast >> (void)(&__dummy == &__dummy2); \ >> ^ >> include/linux/spinlock.h:221:3: note: in expansion of macro 'typecheck' >> typecheck(unsigned long, flags); \ >> ^ >> include/linux/spinlock.h:346:2: note: in expansion of macro 'raw_spin_lock_irqsave' >> raw_spin_lock_irqsave(spinlock_check(lock), flags); \ >> ^ >> drivers/mmc/host/dw_mmc.c:1953:2: note: in expansion of macro 'spin_lock_irqsave' >> spin_lock_irqsave(&host->irq_lock, irqflags); >> ^ >> >> Introduced by commit >> >> 80a2a5a7745b ("mmc: dw_mmc: Cleanup the DTO timer like the CTO one") > > Yes, the 0-day bot already complained about this. The short answer is > that Ulf kindly volunteered to manually fix up my patch series where I > had introduced a variable in the wrong patch. ...but in doing so he > introduced a small bug. > > It should be very easy to fix. Just need to change irqflags from > "unsigned int" to "unsigned long". Yes, problem fixed! Kind regards Uffe
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