[PATCH u-boot-net v3 10/14] phy: Move PHY_INTERFACE_MODE_NA to the beginning of the enum definition

Marek Behún
2022-03-29T20:10:55Z

Move PHY_INTERFACE_MODE_NA to the beginning of the enum definition to
make it have zero value. This makes it possible (although not
encouraged) to test for invalid/nonexistent interface mode with !val
instead of val == PHY_INTERFACE_MODE_NA.

The comment near the definition says "Must be last", because when the
constant was introduced in commit 5f184715ecd3 ("Create PHY Lib for
U-Boot"), it was used as the maximum value when interating over the
constants. But this is no longer true - we use PHY_INTERFACE_MODE_MAX
for that now, and so we can move it.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
---
include/phy_interface.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/include/phy_interface.h b/include/phy_interface.h
index 59e119a639..ce3b5004ec 100644
--- a/include/phy_interface.h
+++ b/include/phy_interface.h
@@ -13,6 +13,7 @@
#include <string.h>

typedef enum {
+ PHY_INTERFACE_MODE_NA, /* don't touch */
PHY_INTERFACE_MODE_MII,
PHY_INTERFACE_MODE_GMII,
PHY_INTERFACE_MODE_SGMII,
@@ -39,12 +40,11 @@ typedef enum {
PHY_INTERFACE_MODE_NCSI,
PHY_INTERFACE_MODE_10GBASER,
PHY_INTERFACE_MODE_USXGMII,
- PHY_INTERFACE_MODE_NA, /* Must be last */
-
PHY_INTERFACE_MODE_MAX,
} phy_interface_t;

static const char * const phy_interface_strings[] = {
+ [PHY_INTERFACE_MODE_NA] = "",
[PHY_INTERFACE_MODE_MII] = "mii",
[PHY_INTERFACE_MODE_GMII] = "gmii",
[PHY_INTERFACE_MODE_SGMII] = "sgmii",
@@ -71,7 +71,6 @@ static const char * const phy_interface_strings[] = {
[PHY_INTERFACE_MODE_NCSI] = "NC-SI",
[PHY_INTERFACE_MODE_10GBASER] = "10gbase-r",
[PHY_INTERFACE_MODE_USXGMII] = "usxgmii",
- [PHY_INTERFACE_MODE_NA] = "",
};

/* Backplane modes:
--
2.34.1