linux/arch/riscv/mm
Jisheng Zhang b690e266da
riscv: mm: fix truncation warning on RV32
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>
2023-07-12 07:44:00 -07:00
..
cacheflush.c riscv: mm: mark CBO relate initialization funcs as __init 2023-07-06 10:32:04 -07:00
context.c riscv: mm: Fix incorrect ASID argument when flushing TLB 2023-03-21 15:55:19 -07:00
dma-noncoherent.c riscv: mm: mark noncoherent_supported as __ro_after_init 2023-07-06 10:32:05 -07:00
extable.c riscv: extable: fix err reg writing in dedicated uaccess handler 2022-02-08 17:02:47 -08:00
fault.c RISC-V Patches for the 6.5 Merge Window, Part 1 2023-06-30 09:37:26 -07:00
hugetlbpage.c mm: riscv: fix an unsafe pte read in huge_pte_alloc() 2023-07-05 07:24:17 -07:00
init.c riscv: mm: fix truncation warning on RV32 2023-07-12 07:44:00 -07:00
kasan_init.c riscv: Rework kasan population functions 2023-04-19 07:24:50 -07:00
Makefile riscv: mm: stub extable related functions/macros for !MMU 2023-06-14 07:17:45 -07:00
pageattr.c RISC-V: mm: Enable huge page support to kernel_page_present() function 2023-04-29 11:25:12 -07:00
pgtable.c riscv: mm: Implement pmdp_collapse_flush for THP 2023-02-01 20:52:09 -08:00
physaddr.c riscv: Use PUD/P4D/PGD pages for the linear mapping 2023-04-18 20:43:04 -07:00
pmem.c RISC-V: Implement arch specific PMEM APIs 2022-12-08 15:43:59 -08:00
ptdump.c riscv: Fix ptdump when KASAN is enabled 2023-04-19 07:24:53 -07:00
tlbflush.c RISC-V: Use IPIs for remote TLB flush when possible 2023-04-08 11:26:24 +01:00