mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 06:43:06 +07:00
00085f1efa
The dma-mapping core and the implementations do not change the DMA
attributes passed by pointer. Thus the pointer can point to const data.
However the attributes do not have to be a bitfield. Instead unsigned
long will do fine:
1. This is just simpler. Both in terms of reading the code and setting
attributes. Instead of initializing local attributes on the stack
and passing pointer to it to dma_set_attr(), just set the bits.
2. It brings safeness and checking for const correctness because the
attributes are passed by value.
Semantic patches for this change (at least most of them):
virtual patch
virtual context
@r@
identifier f, attrs;
@@
f(...,
- struct dma_attrs *attrs
+ unsigned long attrs
, ...)
{
...
}
@@
identifier r.f;
@@
f(...,
- NULL
+ 0
)
and
// Options: --all-includes
virtual patch
virtual context
@r@
identifier f, attrs;
type t;
@@
t f(..., struct dma_attrs *attrs);
@@
identifier r.f;
@@
f(...,
- NULL
+ 0
)
Link: http://lkml.kernel.org/r/1468399300-5399-2-git-send-email-k.kozlowski@samsung.com
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Acked-by: Mark Salter <msalter@redhat.com> [c6x]
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> [cris]
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> [drm]
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Fabien Dessenne <fabien.dessenne@st.com> [bdisp]
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> [vb2-core]
Acked-by: David Vrabel <david.vrabel@citrix.com> [xen]
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [xen swiotlb]
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon]
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390]
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [avr32]
Acked-by: Vineet Gupta <vgupta@synopsys.com> [arc]
Acked-by: Robin Murphy <robin.murphy@arm.com> [arm64 and dma-iommu]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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|---|---|---|
| .. | ||
| hardware | ||
| mach | ||
| xen | ||
| arch_gicv3.h | ||
| arch_timer.h | ||
| arm-cci.h | ||
| asm-offsets.h | ||
| assembler.h | ||
| atomic.h | ||
| auxvec.h | ||
| barrier.h | ||
| bitops.h | ||
| bitrev.h | ||
| bL_switcher.h | ||
| bug.h | ||
| bugs.h | ||
| cache.h | ||
| cacheflush.h | ||
| cachetype.h | ||
| checksum.h | ||
| cmpxchg.h | ||
| compiler.h | ||
| cp15.h | ||
| cpu.h | ||
| cpuidle.h | ||
| cputype.h | ||
| cti.h | ||
| dcc.h | ||
| delay.h | ||
| device.h | ||
| div64.h | ||
| dma-contiguous.h | ||
| dma-iommu.h | ||
| dma-mapping.h | ||
| dma.h | ||
| domain.h | ||
| ecard.h | ||
| edac.h | ||
| efi.h | ||
| elf.h | ||
| entry-macro-multi.S | ||
| exception.h | ||
| fb.h | ||
| fiq.h | ||
| firmware.h | ||
| fixmap.h | ||
| flat.h | ||
| floppy.h | ||
| fncpy.h | ||
| fpstate.h | ||
| ftrace.h | ||
| futex.h | ||
| glue-cache.h | ||
| glue-df.h | ||
| glue-pf.h | ||
| glue-proc.h | ||
| glue.h | ||
| gpio.h | ||
| hardirq.h | ||
| highmem.h | ||
| hugetlb-3level.h | ||
| hugetlb.h | ||
| hw_breakpoint.h | ||
| hw_irq.h | ||
| hwcap.h | ||
| hypervisor.h | ||
| ide.h | ||
| idmap.h | ||
| insn.h | ||
| io.h | ||
| irq_work.h | ||
| irq.h | ||
| irqflags.h | ||
| jump_label.h | ||
| Kbuild | ||
| kexec.h | ||
| kgdb.h | ||
| kmap_types.h | ||
| kprobes.h | ||
| kvm_arm.h | ||
| kvm_asm.h | ||
| kvm_coproc.h | ||
| kvm_emulate.h | ||
| kvm_host.h | ||
| kvm_hyp.h | ||
| kvm_mmio.h | ||
| kvm_mmu.h | ||
| kvm_psci.h | ||
| limits.h | ||
| linkage.h | ||
| mach-types.h | ||
| mc146818rtc.h | ||
| mcpm.h | ||
| mcs_spinlock.h | ||
| memblock.h | ||
| memory.h | ||
| mmu_context.h | ||
| mmu.h | ||
| module.h | ||
| mpu.h | ||
| mtd-xip.h | ||
| mutex.h | ||
| neon.h | ||
| nwflash.h | ||
| opcodes-sec.h | ||
| opcodes-virt.h | ||
| opcodes.h | ||
| outercache.h | ||
| page-nommu.h | ||
| page.h | ||
| paravirt.h | ||
| patch.h | ||
| pci.h | ||
| percpu.h | ||
| perf_event.h | ||
| pgalloc.h | ||
| pgtable-2level-hwdef.h | ||
| pgtable-2level-types.h | ||
| pgtable-2level.h | ||
| pgtable-3level-hwdef.h | ||
| pgtable-3level-types.h | ||
| pgtable-3level.h | ||
| pgtable-hwdef.h | ||
| pgtable-nommu.h | ||
| pgtable.h | ||
| probes.h | ||
| proc-fns.h | ||
| processor.h | ||
| procinfo.h | ||
| prom.h | ||
| psci.h | ||
| ptrace.h | ||
| sections.h | ||
| setup.h | ||
| shmparam.h | ||
| signal.h | ||
| smp_plat.h | ||
| smp_scu.h | ||
| smp_twd.h | ||
| smp.h | ||
| sparsemem.h | ||
| spinlock_types.h | ||
| spinlock.h | ||
| stackprotector.h | ||
| stacktrace.h | ||
| stage2_pgtable.h | ||
| string.h | ||
| suspend.h | ||
| swab.h | ||
| switch_to.h | ||
| sync_bitops.h | ||
| syscall.h | ||
| system_info.h | ||
| system_misc.h | ||
| tcm.h | ||
| therm.h | ||
| thread_info.h | ||
| thread_notify.h | ||
| timex.h | ||
| tlb.h | ||
| tlbflush.h | ||
| tls.h | ||
| topology.h | ||
| traps.h | ||
| trusted_foundations.h | ||
| types.h | ||
| uaccess.h | ||
| ucontext.h | ||
| unified.h | ||
| unistd.h | ||
| unwind.h | ||
| uprobes.h | ||
| user.h | ||
| v7m.h | ||
| vdso_datapage.h | ||
| vdso.h | ||
| vfp.h | ||
| vfpmacros.h | ||
| vga.h | ||
| virt.h | ||
| word-at-a-time.h | ||
| xor.h | ||