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00085f1efa
linux/arch/arm/include/asm
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Krzysztof Kozlowski 00085f1efa dma-mapping: use unsigned long for dma_attrs 
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>
2016-08-04 08:50:07 -04:00
..
hardware ARM: uniphier: add outer cache support 2015-10-27 09:20:50 +09:00
mach ARM: Make PCI I/O space optional 2016-06-21 10:54:29 -05:00
xen dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
arch_gicv3.h irqchip/gic-v3: Add missing barrier to 32bit version of gic_read_iar() 2016-02-18 19:15:45 +00:00
arch_timer.h clocksource: arch_timer: Fix code to use physical timers when requested 2014-12-04 23:30:26 -08:00
arm-cci.h arm-cci: Get rid of secure transactions for PMU driver 2015-03-27 13:44:35 +00:00
asm-offsets.h
assembler.h ARM: introduce svc_pt_regs structure 2016-06-22 19:54:52 +01:00
atomic.h locking/atomic: Remove linux/atomic.h:atomic_fetch_or() 2016-06-16 10:48:32 +02:00
auxvec.h ARM: 8329/1: miscellaneous vdso infrastructure, preparation 2015-03-27 22:20:45 +00:00
barrier.h ARM: 8582/1: remove unused CONFIG_ARCH_HAS_BARRIERS 2016-07-02 11:01:08 +01:00
bitops.h ARM: 8417/1: refactor bitops functions with BIT_MASK() and BIT_WORD() 2015-08-18 14:00:30 +01:00
bitrev.h ARM: 8287/1: add bitrev.h file to support rbit instruction 2015-01-16 14:06:18 +00:00
bL_switcher.h
bug.h ARM: 8455/1: define __BUG as asm(BUG_INSTR) without CONFIG_BUG 2015-12-03 00:02:29 +00:00
bugs.h
cache.h
cacheflush.h asm-generic: Consolidate mark_rodata_ro() 2016-02-22 08:51:37 +01:00
cachetype.h
checksum.h ipv6: Pass proto to csum_ipv6_magic as __u8 instead of unsigned short 2016-03-13 23:55:13 -04:00
cmpxchg.h ARM: 8443/1: Adding support for atomic half word exchange 2015-10-09 16:22:54 +01:00
compiler.h ARM: 8300/1: teach __asmeq that r11 == fp and r12 == ip 2015-02-10 10:23:11 +00:00
cp15.h ARM: remove global cr_no_alignment 2014-06-02 09:20:18 +01:00
cpu.h
cpuidle.h ARM: cpuidle: add const qualifier to cpuidle_ops member in structures 2016-04-20 06:59:10 +02:00
cputype.h ARM: 8564/1: fix cpu feature extracting helper 2016-04-19 19:42:26 +01:00
cti.h
dcc.h ARM: tty: Move HVC DCC assembly to arch/arm 2014-05-28 13:33:18 -07:00
delay.h ARM: 8306/1: loop_udelay: remove bogomips value limitation 2016-06-22 19:55:12 +01:00
device.h arm: introduce is_device_dma_coherent 2014-12-04 12:41:50 +00:00
div64.h ARM: 8504/1: __arch_xprod_64(): small optimization 2016-02-11 15:33:37 +00:00
dma-contiguous.h
dma-iommu.h ARM: 8347/1: dma-mapping: fix off-by-one check in arm_setup_iommu_dma_ops 2015-05-03 23:21:55 +01:00
dma-mapping.h dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
dma.h remove <asm/scatterlist.h> 2015-05-05 13:35:39 -06:00
domain.h ARM: 8573/1: domain: move {set,get}_domain under config guard 2016-05-05 19:03:02 +01:00
ecard.h
edac.h EDAC: Cleanup atomic_scrub mess 2015-05-28 15:31:53 +02:00
efi.h efi: Convert efi_call_virt() to efi_call_virt_pointer() 2016-06-27 13:06:56 +02:00
elf.h Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2015-04-14 21:03:26 -07:00
entry-macro-multi.S ARM: replace BSYM() with badr assembly macro 2015-05-08 17:33:50 +01:00
exception.h arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections 2016-03-25 16:37:42 -07:00
fb.h
fiq.h
firmware.h ARM: EXYNOS: add exynos_get_boot_addr() helper 2015-06-06 02:17:56 +09:00
fixmap.h ARM: add support for generic early_ioremap/early_memremap 2015-12-13 19:18:28 +01:00
flat.h
floppy.h ARM: 8584/1: floppy: avoid gcc-6 warning 2016-07-02 11:02:13 +01:00
fncpy.h
fpstate.h
ftrace.h ARM: 8158/1: LLVMLinux: use static inline in ARM ftrace.h 2014-09-26 14:40:03 +01:00
futex.h ARM: uaccess: provide uaccess_save_and_enable() and uaccess_restore() 2015-08-25 16:14:43 +01:00
glue-cache.h ARM: reduce visibility of dmac_* functions 2015-08-01 22:25:04 +01:00
glue-df.h ARM: 8065/1: remove last use of CONFIG_CPU_ARM710 2014-05-30 01:12:30 +01:00
glue-pf.h
glue-proc.h ARM: 8103/1: save/restore Cortex-A9 CP15 registers on suspend/resume 2014-07-18 12:29:37 +01:00
glue.h
gpio.h ARM: delete old reference to ARM_GPIOLIB_COMPLEX 2014-06-30 21:37:39 +02:00
hardirq.h ARM: 8487/1: Remove IPI_CALL_FUNC_SINGLE 2015-12-22 12:09:43 +00:00
highmem.h kmap_atomic_to_page() has no users, remove it 2015-11-09 15:11:24 -08:00
hugetlb-3level.h
hugetlb.h mm/hugetlb: remove arch_prepare/release_hugepage from arch headers 2015-06-25 17:00:35 -07:00
hw_breakpoint.h ARM: 7948/1: hw_breakpoint: Add ARMv8 support 2014-02-10 11:48:05 +00:00
hw_irq.h ARM: Remove ununsed set_irq_flags 2015-09-16 16:53:39 +02:00
hwcap.h ARM: 7981/1: add support for AT_HWCAP2 ELF auxv entry 2014-02-25 11:40:48 +00:00
hypervisor.h
ide.h
idmap.h
insn.h ARM: kprobes: enable OPTPROBES for ARM 32 2015-01-13 16:10:17 +00:00
io.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2016-07-28 14:22:25 -07:00
irq_work.h arm: Tell irq work about self IPI support 2014-09-13 18:38:39 +02:00
irq.h xen/events: Always allocate legacy interrupts on PV guests 2015-11-26 18:05:01 +00:00
irqflags.h ARM: 8422/1: enable imprecise aborts during early kernel startup 2015-09-22 08:13:56 +01:00
jump_label.h locking/static_keys: Add a new static_key interface 2015-08-03 11:34:15 +02:00
Kbuild ARM: SoC cleanups for v4.6 2016-03-20 14:37:22 -07:00
kexec.h ARM: kexec: fix kexec for Keystone 2 2016-08-02 19:35:29 -04:00
kgdb.h
kmap_types.h
kprobes.h ARM: optprobes: execute instruction during restoring if possible. 2015-01-14 12:24:52 +00:00
kvm_arm.h arm64: KVM: Add support for 16-bit VMID 2015-12-18 10:15:12 +00:00
kvm_asm.h arm: KVM: Allow hyp teardown 2016-07-03 23:41:27 +02:00
kvm_coproc.h
kvm_emulate.h arm/arm64: KVM: Handle out-of-RAM cache maintenance as a NOP 2016-02-29 18:34:15 +00:00
kvm_host.h KVM: arm/arm64: Extend arch CAP checks to allow per-VM capabilities 2016-07-18 18:10:31 +01:00
kvm_hyp.h arm/arm64: Get rid of KERN_TO_HYP 2016-07-03 23:41:27 +02:00
kvm_mmio.h KVM: arm/arm64: Export mmio_read/write_bus 2016-05-20 15:39:42 +02:00
kvm_mmu.h arm/arm64: Get rid of KERN_TO_HYP 2016-07-03 23:41:27 +02:00
kvm_psci.h ARM/ARM64: KVM: Make kvm_psci_call() return convention more flexible 2014-04-30 04:18:57 -07:00
limits.h
linkage.h
mach-types.h
mc146818rtc.h
mcpm.h ARM: MCPM: remove residency argument from mcpm_cpu_suspend() 2015-05-06 11:47:10 -04:00
mcs_spinlock.h ARM: 8098/1: mcs lock: implement wfe-based polling for MCS locking 2014-07-18 12:29:35 +01:00
memblock.h ARM: 8025/1: Get rid of meminfo 2014-06-01 01:17:12 +01:00
memory.h ARM: provide arm_has_idmap_alias() helper 2016-05-03 11:17:28 +01:00
mmu_context.h ARM: Hide finish_arch_post_lock_switch() from modules 2016-05-13 16:12:53 +02:00
mmu.h ARM: 8329/1: miscellaneous vdso infrastructure, preparation 2015-03-27 22:20:45 +00:00
module.h ARM: 8220/1: allow modules outside of bl range 2015-05-08 10:42:34 +01:00
mpu.h
mtd-xip.h
mutex.h
neon.h
nwflash.h
opcodes-sec.h
opcodes-virt.h
opcodes.h
outercache.h ARM: move heavy barrier support out of line 2015-07-25 15:28:05 +01:00
page-nommu.h asm-generic: page.h: Remove useless get_user_page and free_user_page 2016-02-26 15:24:55 +01:00
page.h
paravirt.h arm: introduce CONFIG_PARAVIRT, PARAVIRT_TIME_ACCOUNTING and pv_time_ops 2015-12-21 14:40:54 +00:00
patch.h ARM: probes: move all probe code to dedicate directory 2015-01-09 09:36:50 +00:00
pci.h PCI: Move pci_dma_* helpers to common code 2016-03-07 10:40:02 -06:00
percpu.h ARM: 8174/1: Use global stack register variable for percpu 2014-11-13 23:58:06 +00:00
perf_event.h arm: perf: Fix callchain parse error with kernel tracepoint events 2015-05-27 16:12:05 +01:00
pgalloc.h arm: get rid of superfluous __GFP_REPEAT 2016-07-26 16:19:19 -07:00
pgtable-2level-hwdef.h ARM: domains: keep vectors in separate domain 2015-08-21 13:55:53 +01:00
pgtable-2level-types.h
pgtable-2level.h ARM: 8578/1: mm: ensure pmd_present only checks the valid bit 2016-06-09 17:51:47 +01:00
pgtable-3level-hwdef.h ARM: 8235/1: Support for the PXN CPU feature on ARMv7 2014-12-03 15:57:45 +00:00
pgtable-3level-types.h
pgtable-3level.h ARM: 8579/1: mm: Fix definition of pmd_mknotpresent 2016-06-09 17:51:47 +01:00
pgtable-hwdef.h
pgtable-nommu.h mm: make FIRST_USER_ADDRESS unsigned long on all archs 2015-02-11 17:06:03 -08:00
pgtable.h - ARM: GICv3 ITS emulation and various fixes. Removal of the old 2016-08-02 16:11:27 -04:00
probes.h ARM: optprobes: execute instruction during restoring if possible. 2015-01-14 12:24:52 +00:00
proc-fns.h ARM: redo TTBR setup code for LPAE 2015-06-01 23:48:19 +01:00
processor.h arch, locking: Ciao arch_mutex_cpu_relax() 2014-07-17 12:32:47 +02:00
procinfo.h
prom.h of/fdt: move memreserve and dtb memory reservations into core 2014-04-30 00:59:17 -05:00
psci.h ARM: SoC cleanups for v4.5 2016-01-20 17:55:20 -08:00
ptrace.h ARM: save and reset the address limit when entering an exception 2016-07-07 16:01:01 +01:00
sections.h ARM: 8518/1: Use correct symbols for XIP_KERNEL 2016-02-11 15:43:14 +00:00
setup.h ARM: 8495/1: ATAGS: move save_atags() to arch/arm/include/asm/setup.h 2016-01-04 11:26:00 +00:00
shmparam.h
signal.h
smp_plat.h ARM: 8392/3: smp: Only expose /sys/.../cpuX/online if hotpluggable 2015-07-31 18:58:30 +01:00
smp_scu.h ARM: make it easier to check the CPU part number correctly 2014-07-18 12:29:02 +01:00
smp_twd.h
smp.h ARM: 8423/1: add const qualifier to smp_operations member in structures 2015-09-22 08:13:57 +01:00
sparsemem.h ARM: 8411/1: Add default SPARSEMEM settings 2016-02-16 16:35:21 +00:00
spinlock_types.h
spinlock.h locking/spinlock, arch: Update and fix spin_unlock_wait() implementations 2016-06-14 11:55:15 +02:00
stackprotector.h
stacktrace.h ARM: 8070/1: Introduce arm_get_current_stack_frame() 2014-07-18 12:29:11 +01:00
stage2_pgtable.h kvm-arm: arm32: Introduce stage2 page table helpers 2016-04-21 14:57:26 +02:00
string.h
suspend.h ARM: 8389/1: Add cpu_resume_arm() for firmwares that resume in ARM state 2015-06-12 21:17:17 +01:00
swab.h
switch_to.h sched, arm: Remove finish_arch_switch() 2015-08-04 09:37:52 +02:00
sync_bitops.h ARM: 7989/1: Delete asm/system.h 2014-02-25 11:33:37 +00:00
syscall.h ARM: 8152/1: Convert pr_warning to pr_warn 2014-09-26 14:39:53 +01:00
system_info.h ARM: 8355/1: arch: Show the serial number from devicetree in cpuinfo 2015-05-08 10:42:35 +01:00
system_misc.h
tcm.h
therm.h
thread_info.h Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2015-09-14 12:24:10 -07:00
thread_notify.h
timex.h
tlb.h mm/mmu_gather: track page size with mmu gather and force flush if page size change 2016-07-26 16:19:19 -07:00
tlbflush.h
tls.h ARM: 8178/1: fix set_tls for !CONFIG_KUSER_HELPERS 2014-09-30 16:55:23 +01:00
topology.h sched/topology: Rename topology_thread_cpumask() to topology_sibling_cpumask() 2015-05-27 15:22:15 +02:00
traps.h
trusted_foundations.h ARM: trusted_foundations: fix compile error on non-SMP 2014-05-23 21:28:11 +02:00
types.h
uaccess.h ARM: uaccess: remove put_user() code duplication 2016-06-22 19:55:11 +01:00
ucontext.h
unified.h ARM: replace BSYM() with badr assembly macro 2015-05-08 17:33:50 +01:00
unistd.h ARM: wire up preadv2 and pwritev2 syscalls 2016-04-07 21:57:02 +01:00
unwind.h
uprobes.h ARM: add uprobes support 2014-03-18 16:39:40 -04:00
user.h
v7m.h
vdso_datapage.h ARM: 8329/1: miscellaneous vdso infrastructure, preparation 2015-03-27 22:20:45 +00:00
vdso.h ARM: 8329/1: miscellaneous vdso infrastructure, preparation 2015-03-27 22:20:45 +00:00
vfp.h ARM: vfp: Add vfp_disable for problematic platforms 2015-05-20 15:07:00 -07:00
vfpmacros.h
vga.h
virt.h arm/arm64: KVM: Export __hyp_text_start/end symbols 2016-07-03 23:41:27 +02:00
word-at-a-time.h ARM: 8322/1: keep .text and .fixup regions closer together 2015-03-29 23:11:56 +01:00
xor.h