linux/arch/powerpc/kernel
Krzysztof Kozlowski 8f28ca6bd8 iomap: constify ioreadX() iomem argument (as in generic implementation)
Patch series "iomap: Constify ioreadX() iomem argument", v3.

The ioread8/16/32() and others have inconsistent interface among the
architectures: some taking address as const, some not.

It seems there is nothing really stopping all of them to take pointer to
const.

This patch (of 4):

The ioreadX() and ioreadX_rep() helpers have inconsistent interface.  On
some architectures void *__iomem address argument is a pointer to const,
on some not.

Implementations of ioreadX() do not modify the memory under the address so
they can be converted to a "const" version for const-safety and
consistency among architectures.

[krzk@kernel.org: sh: clk: fix assignment from incompatible pointer type for ioreadX()]
  Link: http://lkml.kernel.org/r/20200723082017.24053-1-krzk@kernel.org
[akpm@linux-foundation.org: fix drivers/mailbox/bcm-pdc-mailbox.c]
  Link: http://lkml.kernel.org/r/202007132209.Rxmv4QyS%25lkp@intel.com

Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: Allen Hubbe <allenbh@gmail.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Link: http://lkml.kernel.org/r/20200709072837.5869-1-krzk@kernel.org
Link: http://lkml.kernel.org/r/20200709072837.5869-2-krzk@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-14 19:56:57 -07:00
..
ptrace powerpc/ptrace: Fix build error in pkey_get() 2020-08-07 18:27:26 -07:00
syscalls all arch: remove system call sys_sysctl 2020-08-14 19:56:56 -07:00
trace
vdso32 powerpc/build: vdso linker warning for orphan sections 2020-07-29 21:09:37 +10:00
vdso64 powerpc/build: vdso linker warning for orphan sections 2020-07-29 21:09:37 +10:00
.gitignore
Makefile Kbuild updates for v5.9 2020-08-09 14:10:26 -07:00
align.c powerpc: Use fallthrough pseudo-keyword 2020-07-29 21:09:37 +10:00
asm-offsets.c
audit.c
btext.c
cacheinfo.c powerpc/cacheinfo: Warn if cache object chain becomes unordered 2020-07-30 22:53:48 +10:00
cacheinfo.h
compat_audit.c
cpu_setup_6xx.S
cpu_setup_44x.S
cpu_setup_fsl_booke.S
cpu_setup_pa6t.S
cpu_setup_power.S
cpu_setup_ppc970.S
cputable.c
crash_dump.c
dawr.c
dbell.c
dma-iommu.c
dma-mask.c
dma-swiotlb.c
dt_cpu_ftrs.c
early_32.c
eeh.c
eeh_cache.c
eeh_driver.c pci-v5.9-changes 2020-08-07 18:48:15 -07:00
eeh_event.c
eeh_pe.c
eeh_sysfs.c
entry_32.S
entry_64.S
epapr_hcalls.S
epapr_paravirt.c
exceptions-64e.S
exceptions-64s.S powerpc updates for 5.9 2020-08-07 10:33:50 -07:00
fadump.c
firmware.c powerpc/pseries: Add KVM guest doorbell restrictions 2020-07-29 21:02:10 +10:00
fpu.S
fsl_booke_entry_mapping.S
head_8xx.S
head_32.S powerpc/32s: Remove TAUException wart in traps.c 2020-07-29 21:08:18 +10:00
head_32.h
head_40x.S powerpc/40x: Fix assembler warning about r0 2020-08-03 22:12:41 +10:00
head_44x.S
head_64.S
head_booke.h
head_fsl_booke.S
hw_breakpoint.c
idle.c
idle_6xx.S
idle_book3e.S
idle_book3s.S
idle_e500.S
ima_arch.c
io-workarounds.c
io.c
iomap.c iomap: constify ioreadX() iomem argument (as in generic implementation) 2020-08-14 19:56:57 -07:00
iommu.c
irq.c powerpc/64s: Move HMI IRQ stat from percpu variable to paca. 2020-07-29 23:47:53 +10:00
isa-bridge.c
jump_label.c
kgdb.c
kprobes-ftrace.c
kprobes.c
kvm.c
kvm_emul.S
l2cr_6xx.S
legacy_serial.c
mce.c powerpc/64s: Move HMI IRQ stat from percpu variable to paca. 2020-07-29 23:47:53 +10:00
mce_power.c
misc.S
misc_32.S
misc_64.S
module.c
module.lds
module_32.c
module_64.c
msi.c
note.S
nvram_64.c
of_platform.c
optprobes.c
optprobes_head.S
paca.c
pci-common.c
pci-hotplug.c
pci_32.c
pci_64.c
pci_dn.c
pci_of_scan.c
pmc.c
ppc32.h
ppc_save_regs.S
proc_powerpc.c
process.c powerpc updates for 5.9 2020-08-07 10:33:50 -07:00
prom.c powerpc/drmem: Make LMB walk a bit more flexible 2020-07-29 23:47:54 +10:00
prom_init.c powerpc: fix function annotations to avoid section mismatch warnings with gcc-10 2020-07-30 10:50:07 +10:00
prom_init_check.sh
prom_parse.c
reloc_32.S
reloc_64.S
rtas-proc.c
rtas-rtc.c
rtas.c
rtas_flash.c
rtas_pci.c
rtasd.c
secure_boot.c
security.c
secvar-ops.c
secvar-sysfs.c
setup-common.c powerpc/hugetlb/cma: Allocate gigantic hugetlb pages using CMA 2020-07-29 21:09:37 +10:00
setup.h
setup_32.c
setup_64.c
signal.c
signal.h
signal_32.c
signal_64.c
smp-tbsync.c
smp.c
stacktrace.c
suspend.c
swsusp.c
swsusp_32.S
swsusp_64.c
swsusp_asm64.S
swsusp_booke.S
sys_ppc32.c
syscall_64.c
syscalls.c
sysfs.c
systbl.S
systbl_chk.sh
tau_6xx.c
time.c
tm.S
traps.c powerpc/32s: Remove TAUException wart in traps.c 2020-07-29 21:08:18 +10:00
ucall.S
udbg.c
udbg_16550.c
uprobes.c
vdso.c
vecemu.c
vector.S
vmlinux.lds.S
watchdog.c