On 27/04/18 16:53, Christoph Hellwig wrote: > There is no arch specific code required for dma-debug, so there is no > need to opt into the support either. Makes sense, and a purely negative diffstat is always pleasing :) Reviewed-by: Robin Murphy <robin.murphy at arm.com> > Signed-off-by: Christoph Hellwig <hch at lst.de> > --- > .../io/dma-api-debug/arch-support.txt | 31 ------------------- > arch/Kconfig | 3 -- > arch/arm/Kconfig | 1 - > arch/arm64/Kconfig | 1 - > arch/c6x/Kconfig | 1 - > arch/ia64/Kconfig | 1 - > arch/microblaze/Kconfig | 1 - > arch/mips/Kconfig | 1 - > arch/powerpc/Kconfig | 1 - > arch/riscv/Kconfig | 1 - > arch/s390/Kconfig | 1 - > arch/sh/Kconfig | 1 - > arch/sparc/Kconfig | 1 - > arch/x86/Kconfig | 1 - > arch/xtensa/Kconfig | 1 - > lib/Kconfig.debug | 1 - > 16 files changed, 48 deletions(-) > delete mode 100644 Documentation/features/io/dma-api-debug/arch-support.txt > > diff --git a/Documentation/features/io/dma-api-debug/arch-support.txt b/Documentation/features/io/dma-api-debug/arch-support.txt > deleted file mode 100644 > index e438ed675623..000000000000 > --- a/Documentation/features/io/dma-api-debug/arch-support.txt > +++ /dev/null > @@ -1,31 +0,0 @@ > -# > -# Feature name: dma-api-debug > -# Kconfig: HAVE_DMA_API_DEBUG > -# description: arch supports DMA debug facilities > -# > - ----------------------- > - | arch |status| > - ----------------------- > - | alpha: | TODO | > - | arc: | TODO | > - | arm: | ok | > - | arm64: | ok | > - | c6x: | ok | > - | h8300: | TODO | > - | hexagon: | TODO | > - | ia64: | ok | > - | m68k: | TODO | > - | microblaze: | ok | > - | mips: | ok | > - | nios2: | TODO | > - | openrisc: | TODO | > - | parisc: | TODO | > - | powerpc: | ok | > - | s390: | ok | > - | sh: | ok | > - | sparc: | ok | > - | um: | TODO | > - | unicore32: | TODO | > - | x86: | ok | > - | xtensa: | ok | > - ----------------------- > diff --git a/arch/Kconfig b/arch/Kconfig > index 8e0d665c8d53..f07a1a99e5db 100644 > --- a/arch/Kconfig > +++ b/arch/Kconfig > @@ -278,9 +278,6 @@ config HAVE_CLK > The <linux/clk.h> calls support software clock gating and > thus are a key power management tool on many systems. > > -config HAVE_DMA_API_DEBUG > - bool > - > config HAVE_HW_BREAKPOINT > bool > depends on PERF_EVENTS > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig > index 676977bdfe33..c43f5bb55ac8 100644 > --- a/arch/arm/Kconfig > +++ b/arch/arm/Kconfig > @@ -60,7 +60,6 @@ config ARM > select HAVE_CONTEXT_TRACKING > select HAVE_C_RECORDMCOUNT > select HAVE_DEBUG_KMEMLEAK > - select HAVE_DMA_API_DEBUG > select HAVE_DMA_CONTIGUOUS if MMU > select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) && !CPU_ENDIAN_BE32 && MMU > select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > index db51b6445744..b25ed7834f6c 100644 > --- a/arch/arm64/Kconfig > +++ b/arch/arm64/Kconfig > @@ -105,7 +105,6 @@ config ARM64 > select HAVE_CONTEXT_TRACKING > select HAVE_DEBUG_BUGVERBOSE > select HAVE_DEBUG_KMEMLEAK > - select HAVE_DMA_API_DEBUG > select HAVE_DMA_CONTIGUOUS > select HAVE_DYNAMIC_FTRACE > select HAVE_EFFICIENT_UNALIGNED_ACCESS > diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig > index c6b4dd1418b4..8c088b96e372 100644 > --- a/arch/c6x/Kconfig > +++ b/arch/c6x/Kconfig > @@ -10,7 +10,6 @@ config C6X > select GENERIC_ATOMIC64 > select GENERIC_IRQ_SHOW > select HAVE_ARCH_TRACEHOOK > - select HAVE_DMA_API_DEBUG > select HAVE_MEMBLOCK > select SPARSE_IRQ > select IRQ_DOMAIN > diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig > index 9485b5490eca..2067289fad4a 100644 > --- a/arch/ia64/Kconfig > +++ b/arch/ia64/Kconfig > @@ -29,7 +29,6 @@ config IA64 > select HAVE_FUNCTION_TRACER > select TTY > select HAVE_ARCH_TRACEHOOK > - select HAVE_DMA_API_DEBUG > select HAVE_MEMBLOCK > select HAVE_MEMBLOCK_NODE_MAP > select HAVE_VIRT_CPU_ACCOUNTING > diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig > index 3817a3e2146c..d14782100088 100644 > --- a/arch/microblaze/Kconfig > +++ b/arch/microblaze/Kconfig > @@ -19,7 +19,6 @@ config MICROBLAZE > select HAVE_ARCH_HASH > select HAVE_ARCH_KGDB > select HAVE_DEBUG_KMEMLEAK > - select HAVE_DMA_API_DEBUG > select HAVE_DYNAMIC_FTRACE > select HAVE_FTRACE_MCOUNT_RECORD > select HAVE_FUNCTION_GRAPH_TRACER > diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig > index 0f619b8c0e9e..2dcdc13cd65d 100644 > --- a/arch/mips/Kconfig > +++ b/arch/mips/Kconfig > @@ -42,7 +42,6 @@ config MIPS > select HAVE_C_RECORDMCOUNT > select HAVE_DEBUG_KMEMLEAK > select HAVE_DEBUG_STACKOVERFLOW > - select HAVE_DMA_API_DEBUG > select HAVE_DMA_CONTIGUOUS > select HAVE_DYNAMIC_FTRACE > select HAVE_EXIT_THREAD > diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig > index 1887f8f86a77..268fd46fc3c7 100644 > --- a/arch/powerpc/Kconfig > +++ b/arch/powerpc/Kconfig > @@ -181,7 +181,6 @@ config PPC > select HAVE_CONTEXT_TRACKING if PPC64 > select HAVE_DEBUG_KMEMLEAK > select HAVE_DEBUG_STACKOVERFLOW > - select HAVE_DMA_API_DEBUG > select HAVE_DYNAMIC_FTRACE > select HAVE_DYNAMIC_FTRACE_WITH_REGS if MPROFILE_KERNEL > select HAVE_EBPF_JIT if PPC64 > diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig > index 17212ba54ee3..95e2da34aaad 100644 > --- a/arch/riscv/Kconfig > +++ b/arch/riscv/Kconfig > @@ -23,7 +23,6 @@ config RISCV > select GENERIC_ATOMIC64 if !64BIT || !RISCV_ISA_A > select HAVE_MEMBLOCK > select HAVE_MEMBLOCK_NODE_MAP > - select HAVE_DMA_API_DEBUG > select HAVE_DMA_CONTIGUOUS > select HAVE_GENERIC_DMA_COHERENT > select IRQ_DOMAIN > diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig > index b794a2ab6d15..6a64287ec1da 100644 > --- a/arch/s390/Kconfig > +++ b/arch/s390/Kconfig > @@ -130,7 +130,6 @@ config S390 > select HAVE_CMPXCHG_LOCAL > select HAVE_COPY_THREAD_TLS > select HAVE_DEBUG_KMEMLEAK > - select HAVE_DMA_API_DEBUG > select HAVE_DMA_CONTIGUOUS > select DMA_DIRECT_OPS > select HAVE_DYNAMIC_FTRACE > diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig > index 9417f70e008e..7d521926041e 100644 > --- a/arch/sh/Kconfig > +++ b/arch/sh/Kconfig > @@ -13,7 +13,6 @@ config SUPERH > select HAVE_OPROFILE > select HAVE_GENERIC_DMA_COHERENT > select HAVE_ARCH_TRACEHOOK > - select HAVE_DMA_API_DEBUG > select HAVE_PERF_EVENTS > select HAVE_DEBUG_BUGVERBOSE > select ARCH_HAVE_CUSTOM_GPIO_H > diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig > index c1cfc17eb504..435dbc033afe 100644 > --- a/arch/sparc/Kconfig > +++ b/arch/sparc/Kconfig > @@ -25,7 +25,6 @@ config SPARC > select RTC_CLASS > select RTC_DRV_M48T59 > select RTC_SYSTOHC > - select HAVE_DMA_API_DEBUG > select HAVE_ARCH_JUMP_LABEL if SPARC64 > select GENERIC_IRQ_SHOW > select ARCH_WANT_IPC_PARSE_VERSION > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index aad35c568681..3eeca48a146b 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -135,7 +135,6 @@ config X86 > select HAVE_C_RECORDMCOUNT > select HAVE_DEBUG_KMEMLEAK > select HAVE_DEBUG_STACKOVERFLOW > - select HAVE_DMA_API_DEBUG > select HAVE_DMA_CONTIGUOUS > select HAVE_DYNAMIC_FTRACE > select HAVE_DYNAMIC_FTRACE_WITH_REGS > diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig > index c921e8bccdc8..17df332269b2 100644 > --- a/arch/xtensa/Kconfig > +++ b/arch/xtensa/Kconfig > @@ -19,7 +19,6 @@ config XTENSA > select HAVE_ARCH_KASAN if MMU > select HAVE_CC_STACKPROTECTOR > select HAVE_DEBUG_KMEMLEAK > - select HAVE_DMA_API_DEBUG > select HAVE_DMA_CONTIGUOUS > select HAVE_EXIT_THREAD > select HAVE_FUNCTION_TRACER > diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug > index 685ed2dd4384..d5175eb7b917 100644 > --- a/lib/Kconfig.debug > +++ b/lib/Kconfig.debug > @@ -1634,7 +1634,6 @@ config PROVIDE_OHCI1394_DMA_INIT > > config DMA_API_DEBUG > bool "Enable debugging of DMA-API usage" > - depends on HAVE_DMA_API_DEBUG > select NEED_DMA_MAP_STATE > help > Enable this option to debug the use of the DMA API by device drivers. >
