Re: [RFC PATCH v2 0/7] dmaengine: enhance dmaengine to support DMA device hotplug

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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>

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