Hi Taku, Sorry, forgot to export the percpu variable. Could you please help to test the patch below? Thanks! --- diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 8a41bdf..26316f6 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -73,6 +73,7 @@ static atomic_t dmaengine_dirty; static struct static_key dmaengine_quiesce = STATIC_KEY_INIT_FALSE; static DECLARE_WAIT_QUEUE_HEAD(dmaengine_wait_queue); DEFINE_PER_CPU(long, dmaengine_chan_ref_count); +EXPORT_PER_CPU_SYMBOL(dmaengine_chan_ref_count); #endif /* CONFIG_DMA_ENGINE_HOTPLUG */ /* --- sysfs implementation --- */ On 05/25/2012 08:49 AM, Taku Izumi wrote: > Hi Jiang, > > Build failed with "Device Drivers/DMA Engine Support/Async_tx: Offload > support for the async_tx api" enabled because of undefined symbol. > Patch 5/7 needs a fix? > > (snip) > CHK include/linux/version.h > CHK include/generated/utsrelease.h > CALL scripts/checksyscalls.sh > CHK include/generated/compile.h > CHK include/linux/version.h > make[2]: Nothing to be done for `all'. > Building modules, stage 2. > TEST posttest > MODPOST 2201 modules > Succeed: decoded and checked 1356146 instructions > TEST posttest > Success: decoded and checked 1000000 random instructions with 0 errors (seed:0x9432fb9e) > Kernel: arch/x86/boot/bzImage is ready (#13) > ERROR: "dmaengine_chan_ref_count" [crypto/async_tx/async_xor.ko] undefined! > ERROR: "dmaengine_chan_ref_count" [crypto/async_tx/async_raid6_recov.ko] undefined! > ERROR: "dmaengine_chan_ref_count" [crypto/async_tx/async_pq.ko] undefined! > ERROR: "dmaengine_chan_ref_count" [crypto/async_tx/async_memcpy.ko] undefined! > make[1]: *** [__modpost] Error 1 > make: *** [modules] Error 2 > > Best regards, > Taku Izumi <izumi.taku@xxxxxxxxxxxxxx> > -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
