[PATCH -next] printk: Use the BITS_PER_LONG macro
From: Jinjie Ruan
Date: Mon Sep 02 2024 - 07:04:37 EST
sizeof(unsigned long) * 8 is the number of bits in an unsigned long
variable, replace it with BITS_PER_LONG macro to make it simpler.
Signed-off-by: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>
---
kernel/printk/printk_ringbuffer.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/printk/printk_ringbuffer.h b/kernel/printk/printk_ringbuffer.h
index bd2a892deac1..7433fe477e08 100644
--- a/kernel/printk/printk_ringbuffer.h
+++ b/kernel/printk/printk_ringbuffer.h
@@ -122,7 +122,7 @@ enum desc_state {
#define _DATA_SIZE(sz_bits) (1UL << (sz_bits))
#define _DESCS_COUNT(ct_bits) (1U << (ct_bits))
-#define DESC_SV_BITS (sizeof(unsigned long) * 8)
+#define DESC_SV_BITS BITS_PER_LONG
#define DESC_FLAGS_SHIFT (DESC_SV_BITS - 2)
#define DESC_FLAGS_MASK (3UL << DESC_FLAGS_SHIFT)
#define DESC_STATE(sv) (3UL & (sv >> DESC_FLAGS_SHIFT))
--
2.34.1