diff options
| -rw-r--r-- | arch/riscv/kernel/cpufeature.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c index 3455fdfd680e..a43c08af5f4b 100644 --- a/arch/riscv/kernel/cpufeature.c +++ b/arch/riscv/kernel/cpufeature.c @@ -84,6 +84,7 @@ void __init riscv_fill_hwcap(void) for_each_of_cpu_node(node) { unsigned long this_hwcap = 0; DECLARE_BITMAP(this_isa, RISCV_ISA_EXT_MAX); + const char *temp; if (riscv_of_processor_hartid(node) < 0) continue; @@ -93,6 +94,7 @@ void __init riscv_fill_hwcap(void) continue; } + temp = isa; #if IS_ENABLED(CONFIG_32BIT) if (!strncmp(isa, "rv32", 4)) isa += 4; @@ -100,6 +102,9 @@ void __init riscv_fill_hwcap(void) if (!strncmp(isa, "rv64", 4)) isa += 4; #endif + /* The riscv,isa DT property must start with rv64 or rv32 */ + if (temp == isa) + continue; bitmap_zero(this_isa, RISCV_ISA_EXT_MAX); for (; *isa; ++isa) { const char *ext = isa++; |