OrgACRN
/
acrn-kernel
mirror of https://github.com/projectacrn/acrn-kernel.git
1
0
Fork 0
Code Issues Releases Wiki Activity
acrn-kernel/arch/riscv/mm
History
Jisheng Zhang 1b125be4e0 riscv: mm: fix truncation warning on RV32 
[ Upstream commit b690e266da ]

lkp reports below sparse warning when building for RV32:
arch/riscv/mm/init.c:1204:48: sparse: warning: cast truncates bits from
constant value (100000000 becomes 0)

IMO, the reason we didn't see this truncates bug in real world is "0"
means MEMBLOCK_ALLOC_ACCESSIBLE in memblock and there's no RV32 HW
with more than 4GB memory.

Fix it anyway to make sparse happy.

Fixes: decf89f86e ("riscv: try to allocate crashkern region from 32bit addressible memory")
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202306080034.SLiCiOMn-lkp@intel.com/
Link: https://lore.kernel.org/r/20230709171036.1906-1-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2023-07-23 13:49:26 +02:00
..
Makefile riscv: Add support for non-coherent devices using zicbom extension 2022-07-28 15:30:51 -07:00
cacheflush.c riscv: Fixup race condition on PG_dcache_clean in flush_icache_pte 2023-02-14 19:11:53 +01:00
context.c riscv: mm: Fix incorrect ASID argument when flushing TLB 2023-03-30 12:49:28 +02:00
dma-noncoherent.c RISC-V: Fix compilation without RISCV_ISA_ZICBOM 2022-10-21 11:52:39 +05:30
extable.c riscv: extable: fix err reg writing in dedicated uaccess handler 2022-02-08 17:02:47 -08:00
fault.c riscv/mm: Convert to using lock_mm_and_find_vma() 2023-07-01 13:16:24 +02:00
hugetlbpage.c hugetlbfs: remove hugetlb_add_hstate() warning for existing hstate 2020-06-03 20:09:46 -07:00
init.c riscv: mm: fix truncation warning on RV32 2023-07-23 13:49:26 +02:00
kasan_init.c riscv: mm: add missing memcpy in kasan_init 2022-10-27 14:55:58 -07:00
pageattr.c RISC-V: mm: Enable huge page support to kernel_page_present() function 2023-05-17 11:53:34 +02:00
physaddr.c riscv: Fix crash during early errata patching 2022-12-31 13:32:37 +01:00
ptdump.c riscv: Fix ptdump when KASAN is enabled 2023-05-11 23:03:32 +09:00
tlbflush.c riscv: mm: Fix incorrect ASID argument when flushing TLB 2023-03-30 12:49:28 +02:00