Messages in this thread Patch in this message | | | From | Geert Uytterhoeven <> | Subject | [PATCH] staging: fbtft: Disable DMA support if DMA is not available | Date | Thu, 23 Apr 2015 20:06:52 +0200 |
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If NO_DMA=y:
drivers/built-in.o: In function `fbtft_framebuffer_alloc': (.text+0xb53cae): undefined reference to `dmam_alloc_coherent'
As DMA support is already optional, make it depend on HAS_DMA.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> --- drivers/staging/fbtft/fbtft-core.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c index 53b748be27124793..88bf4705ebadc590 100644 --- a/drivers/staging/fbtft/fbtft-core.c +++ b/drivers/staging/fbtft/fbtft-core.c @@ -47,9 +47,13 @@ static unsigned long debug; module_param(debug, ulong, 0); MODULE_PARM_DESC(debug, "override device debug level"); +#ifdef CONFIG_HAS_DMA static bool dma = true; module_param(dma, bool, 0); MODULE_PARM_DESC(dma, "Use DMA buffer"); +#else +static const bool dma; +#endif void fbtft_dbg_hex(const struct device *dev, int groupsize, -- 1.9.1
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