riscv: mm: Make asid_bits a local variable

This variable is only used inside asids_init().

Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Link: https://lore.kernel.org/r/20240327045035.368512-12-samuel.holland@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

diff --git a/arch/riscv/mm/context.c b/arch/riscv/mm/context.c
index 5315af06cd4d00c890cb2e465a278f2289644ef4..0bf6d0070a14e14bcb63e6b48b7d1e8d554fd247 100644 (file)
--- a/arch/riscv/mm/context.c
+++ b/arch/riscv/mm/context.c
@@ -20,7 +20,6 @@
 
 DEFINE_STATIC_KEY_FALSE(use_asid_allocator);
 
-static unsigned long asid_bits;
 static unsigned long num_asids;
 
 static atomic_long_t current_version;
@@ -226,7 +225,7 @@ static inline void set_mm(struct mm_struct *prev,
 
 static int __init asids_init(void)
 {
-       unsigned long old;
+       unsigned long asid_bits, old;
 
        /* Figure-out number of ASID bits in HW */
        old = csr_read(CSR_SATP);