Remove dependencies on HAS_DMA where a Kconfig symbol depends on another
symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".
In most cases this other symbol is an architecture or platform specific
symbol, or PCI.

Generic symbols and drivers without platform dependencies keep their
dependencies on HAS_DMA, to prevent compiling subsystems or drivers that
cannot work anyway.

This simplifies the dependencies, and allows to improve compile-testing.

Signed-off-by: Geert Uytterhoeven <>
Reviewed-by: Mark Brown <>
Acked-by: Robin Murphy <>
  - Rebase to v4.17-rc1,
  - Removed bogus notes,

  - Add Reviewed-by, Acked-by,
  - Drop RFC state,
  - Split per subsystem.
 drivers/mailbox/Kconfig | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/mailbox/Kconfig b/drivers/mailbox/Kconfig
index a2bb27446dce4e2b..725dce5ba62d5baf 100644
--- a/drivers/mailbox/Kconfig
+++ b/drivers/mailbox/Kconfig
@@ -162,7 +162,6 @@ config XGENE_SLIMPRO_MBOX
 config BCM_PDC_MBOX
        tristate "Broadcom FlexSparx DMA Mailbox"
        depends on ARCH_BCM_IPROC || COMPILE_TEST
-       depends on HAS_DMA
          Mailbox implementation for the Broadcom FlexSparx DMA ring manager,
          which provides access to various offload engines on Broadcom
@@ -172,7 +171,6 @@ config BCM_FLEXRM_MBOX
        tristate "Broadcom FlexRM Mailbox"
        depends on ARM64
        depends on ARCH_BCM_IPROC || COMPILE_TEST
-       depends on HAS_DMA
        default m if ARCH_BCM_IPROC

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