linux-kernelorg-stable/include/asm-generic
Ryan Roberts 86758b5048 mm/ioremap: pass pgprot_t to ioremap_prot() instead of unsigned long
ioremap_prot() currently accepts pgprot_val parameter as an unsigned long,
thus implicitly assuming that pgprot_val and pgprot_t could never be
bigger than unsigned long.  But this assumption soon will not be true on
arm64 when using D128 pgtables.  In 128 bit page table configuration,
unsigned long is 64 bit, but pgprot_t is 128 bit.

Passing platform abstracted pgprot_t argument is better as compared to
size based data types.  Let's change the parameter to directly pass
pgprot_t like another similar helper generic_ioremap_prot().

Without this change in place, D128 configuration does not work on arm64 as
the top 64 bits gets silently stripped when passing the protection value
to this function.

Link: https://lkml.kernel.org/r/20250218101954.415331-1-anshuman.khandual@arm.com
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Co-developed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com> [arm64]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-03-16 22:06:23 -07:00
..
bitops bitops: Change function return types from long to int 2024-05-03 17:04:50 +02:00
vdso vdso: Remove timekeeper argument of __arch_update_vsyscall() 2024-10-15 17:50:28 +02:00
Kbuild move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
access_ok.h
agp.h
archrandom.h
asm-offsets.h
asm-prototypes.h
atomic.h
atomic64.h
audit_change_attr.h fs/xattr: add *at family syscalls 2024-11-06 12:59:44 -05:00
audit_dir_write.h
audit_read.h
audit_signal.h
audit_write.h
barrier.h sched: Add missing memory barrier in switch_mm_cid 2024-04-16 13:59:45 +02:00
bitops.h
bitsperlong.h
bug.h bug: Improve comment 2024-05-07 14:20:48 +02:00
cache.h
cacheflush.h mm: Introduce flush_cache_vmap_early() 2023-12-14 00:23:17 -08:00
cfi.h cfi: Flip headers 2023-12-15 16:25:55 -08:00
checksum.h asm-generic: Improve csum_fold 2024-01-17 17:52:29 -08:00
cmpxchg-local.h asm-generic: Fix 32 bit __generic_cmpxchg_local 2024-01-05 23:19:14 +01:00
cmpxchg.h
codetag.lds.h alloc_tag: load module tags into separate contiguous memory 2024-11-07 14:25:16 -08:00
compat.h
current.h asm-generic: current: Don't include thread-info.h if building asm 2023-08-26 22:38:49 +02:00
delay.h delay: Fix ndelay() spuriously treated as udelay() 2024-11-29 11:40:22 +01:00
device.h
div64.h __arch_xprod64(): make __always_inline when optimizing for performance 2024-10-28 21:44:28 +00:00
dma-mapping.h
dma.h
early_ioremap.h mm/early_ioremap: add null pointer checks to prevent NULL-pointer dereference 2025-01-13 22:40:59 -08:00
emergency-restart.h
error-injection.h
exec.h
extable.h
fixmap.h fixmap: Remove unused set_fixmap_offset_io() 2024-07-11 17:41:23 +02:00
flat.h
fprobe.h fprobe: Add fprobe_header encoding feature 2024-12-26 10:50:05 -05:00
ftrace.h
futex.h
getorder.h
hardirq.h
hugetlb.h mm: hugetlb: Add huge page size param to huge_ptep_get_and_clear() 2025-02-27 17:40:57 +00:00
hw_irq.h
int-ll64.h
io.h mm/ioremap: pass pgprot_t to ioremap_prot() instead of unsigned long 2025-03-16 22:06:23 -07:00
ioctl.h
iomap.h asm-generic/iomap.h: remove ARCH_HAS_IOREMAP_xx macros 2023-08-18 10:12:32 -07:00
irq.h
irq_regs.h
irq_work.h
irqflags.h
kdebug.h
kmap_size.h
kprobes.h
kvm_para.h
kvm_types.h
linkage.h
local.h
local64.h
logic_io.h
mcs_spinlock.h
memory_model.h asm-generic: add an optional pfn_valid check to page_to_phys 2024-10-28 21:44:28 +00:00
mm_hooks.h mm: remove arch_unmap() 2024-09-01 20:26:13 -07:00
mmiowb.h
mmiowb_types.h
mmu.h
mmu_context.h
mmzone.h arch, mm: move definition of node_data to generic code 2024-09-03 21:15:28 -07:00
module.h
module.lds.h
mshyperv.h hyperv: Switch from hyperv-tlfs.h to hyperv/hvhdk.h 2025-01-10 00:54:21 +00:00
msi.h
nommu_context.h
numa.h arch_numa: switch over to numa_memblks 2024-09-03 21:15:32 -07:00
param.h
parport.h
pci.h
pci_iomap.h
percpu.h percpu: repurpose __percpu tag as a named address space qualifier 2025-03-16 22:05:53 -07:00
pgalloc.h mm: introduce ctor/dtor at PGD level 2025-01-25 20:22:24 -08:00
pgtable-nop4d.h
pgtable-nopmd.h mm: recover pud_leaf() definitions in nopmd case 2024-03-13 12:12:21 -07:00
pgtable-nopud.h
pgtable_uffd.h
preempt.h riscv: support PREEMPT_DYNAMIC with static keys 2023-08-31 00:18:34 -07:00
qrwlock.h
qrwlock_types.h
qspinlock.h riscv: Add qspinlock support 2024-11-11 07:33:20 -08:00
qspinlock_types.h
resource.h
runtime-const.h runtime constants: add default dummy infrastructure 2024-06-19 12:34:34 -07:00
rwonce.h
seccomp.h
sections.h jump_label,module: Don't alloc static_key_mod for __ro_after_init keys 2024-03-22 11:18:16 +01:00
serial.h
set_memory.h
shmparam.h
signal.h
simd.h
softirq_stack.h
spinlock.h asm-generic: ticket-lock: Add separate ticket-lock.h 2024-11-11 07:33:17 -08:00
spinlock_types.h asm-generic: ticket-lock: Reuse arch_spinlock_t of qspinlock 2024-11-11 07:33:16 -08:00
statfs.h
string.h
switch_to.h
syscall.h include: update references to include/asm-<arch> 2025-01-12 20:20:59 -08:00
syscalls.h syscalls: mmap(): use unsigned offset type consistently 2024-06-25 15:57:38 +02:00
text-patching.h asm-generic: introduce text-patching.h 2024-11-07 14:25:15 -08:00
ticket_spinlock.h riscv: Add qspinlock support 2024-11-11 07:33:20 -08:00
timex.h
tlb.h mm/mmu_gather: clean up the stale code comment 2025-03-16 22:06:14 -07:00
tlbflush.h
topology.h
trace_clock.h
uaccess.h move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
user.h
vermagic.h
vga.h empty include/asm-generic/vga.h 2024-11-11 21:51:42 +01:00
video.h arch: Rename fbdev header and source files 2024-05-03 17:07:50 +02:00
vmlinux.lds.h Fix an objtool false positive, and objtool related 2025-02-28 16:45:36 -08:00
word-at-a-time.h kernel.h: removed REPEAT_BYTE from kernel.h 2024-02-01 09:47:59 -08:00
xor.h