target/linux/brcm2708/patches-4.14/950-0119-dma-bcm2708-Fix-module-compilation-of-CONFIG_DMA_BCM.patch

   1 From 6156ba379ce50e8a969e4e87c9e1eddb117a9e4c Mon Sep 17 00:00:00 2001
   2 From: Andrei Gherzan <andrei@gherzan.com>
   3 Date: Mon, 5 Jun 2017 16:40:38 +0100
   4 Subject: [PATCH 119/454] dma-bcm2708: Fix module compilation of
   5  CONFIG_DMA_BCM2708
   6
   7 bcm2708-dmaengine.c defines functions like bcm_dma_start which are
   8 defined as well in dma-bcm2708.h as inline versions when
   9 CONFIG_DMA_BCM2708 is not defined. This works fine when
  10 CONFIG_DMA_BCM2708 is built in, but when it is selected as module build
  11 fails with redefinition errors because in the build system when
  12 CONFIG_DMA_BCM2708 is selected as module, the macro becomes
  13 CONFIG_DMA_BCM2708_MODULE.
  14
  15 This patch makes the header use CONFIG_DMA_BCM2708_MODULE too when
  16 available.
  17
  18 Fixes https://github.com/raspberrypi/linux/issues/2056
  19
  20 Signed-off-by: Andrei Gherzan <andrei@gherzan.com>
  21 ---
  22  include/linux/platform_data/dma-bcm2708.h | 4 ++--
  23  1 file changed, 2 insertions(+), 2 deletions(-)
  24
  25 --- a/include/linux/platform_data/dma-bcm2708.h
  26 +++ b/include/linux/platform_data/dma-bcm2708.h
  27 @@ -75,7 +75,7 @@ struct bcm2708_dma_cb {
  28  struct scatterlist;
  29  struct platform_device;
  30
  31 -#ifdef CONFIG_DMA_BCM2708
  32 +#if defined(CONFIG_DMA_BCM2708) || defined(CONFIG_DMA_BCM2708_MODULE)
  33
  34  int bcm_sg_suitable_for_dma(struct scatterlist *sg_ptr, int sg_len);
  35  void bcm_dma_start(void __iomem *dma_chan_base, dma_addr_t control_block);
  36 @@ -138,6 +138,6 @@ static inline int bcm_dmaman_remove(stru
  37         return 0;
  38  }
  39
  40 -#endif /* CONFIG_DMA_BCM2708 */
  41 +#endif /* CONFIG_DMA_BCM2708 || CONFIG_DMA_BCM2708_MODULE */
  42
  43  #endif /* _PLAT_BCM2708_DMA_H */