linux_dsm_epyc7002/arch/sh/drivers
Necip Fazil Yildiran 2339005056 sh: dma: fix kconfig dependency for G2_DMA
commit f477a538c14d07f8c45e554c8c5208d588514e98 upstream.

When G2_DMA is enabled and SH_DMA is disabled, it results in the following
Kbuild warning:

WARNING: unmet direct dependencies detected for SH_DMA_API
  Depends on [n]: SH_DMA [=n]
  Selected by [y]:
  - G2_DMA [=y] && SH_DREAMCAST [=y]

The reason is that G2_DMA selects SH_DMA_API without depending on or
selecting SH_DMA while SH_DMA_API depends on SH_DMA.

When G2_DMA was first introduced with commit 40f49e7ed7
("sh: dma: Make G2 DMA configurable."), this wasn't an issue since
SH_DMA_API didn't have such dependency, and this way was the only way to
enable it since SH_DMA_API was non-visible. However, later SH_DMA_API was
made visible and dependent on SH_DMA with commit d8902adcc1
("dmaengine: sh: Add Support SuperH DMA Engine driver").

Let G2_DMA depend on SH_DMA_API instead to avoid Kbuild issues.

Fixes: d8902adcc1 ("dmaengine: sh: Add Support SuperH DMA Engine driver")
Signed-off-by: Necip Fazil Yildiran <fazilyildiran@gmail.com>
Signed-off-by: Rich Felker <dalias@libc.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-27 11:55:20 +01:00
..
dma sh: dma: fix kconfig dependency for G2_DMA 2021-01-27 11:55:20 +01:00
pci dma-mapping: move dma-debug.h to kernel/dma/ 2020-10-06 07:07:05 +02:00
superhyway
heartbeat.c
Kconfig
Makefile
platform_early.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
push-switch.c