staging: vt6655: Use named constants when checking preamble type

Compare `preamble_type` to a predefined constant, `PREAMBLE_SHORT`,
instead of a literal in `bb_get_frame_time` and `vnt_get_phy_field`
functions. Thanks to this change, it is clear that we check
the type of a preamble, not just compare it against an arbitrary value.
Remove a redundant comment.

Signed-off-by: Karolina Drobnik <karolinadrobnik@gmail.com>
Link: https://lore.kernel.org/r/20211021092753.511863-1-karolinadrobnik@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/vt6655/baseband.c b/drivers/staging/vt6655/baseband.c
index 8f9177db6663a8a01ece5a8f9facd608895a770e..84fa6ea3e2e6342d666dd1b8386706cbf29d0a84 100644 (file)
--- a/drivers/staging/vt6655/baseband.c
+++ b/drivers/staging/vt6655/baseband.c
@@ -1717,7 +1717,7 @@ unsigned int bb_get_frame_time(unsigned char preamble_type,
        rate = (unsigned int)awc_frame_time[rate_idx];
 
        if (rate_idx <= 3) {                /* CCK mode */
-               if (preamble_type == 1) /* Short */
+               if (preamble_type == PREAMBLE_SHORT)
                        preamble = 96;
                else
                        preamble = 192;
@@ -1779,7 +1779,7 @@ void vnt_get_phy_field(struct vnt_private *priv, u32 frame_length,
        case RATE_2M:
                count = bit_count / 2;
 
-               if (preamble_type == 1)
+               if (preamble_type == PREAMBLE_SHORT)
                        phy->signal = 0x09;
                else
                        phy->signal = 0x01;
@@ -1792,7 +1792,7 @@ void vnt_get_phy_field(struct vnt_private *priv, u32 frame_length,
                if (tmp != bit_count)
                        count++;
 
-               if (preamble_type == 1)
+               if (preamble_type == PREAMBLE_SHORT)
                        phy->signal = 0x0a;
                else
                        phy->signal = 0x02;
@@ -1809,7 +1809,7 @@ void vnt_get_phy_field(struct vnt_private *priv, u32 frame_length,
                                ext_bit = true;
                }
 
-               if (preamble_type == 1)
+               if (preamble_type == PREAMBLE_SHORT)
                        phy->signal = 0x0b;
                else
                        phy->signal = 0x03;