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-rw-r--r--drivers/net/pse-pd/pse_core.c3
-rw-r--r--include/linux/pse-pd/pse.h2
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/pse-pd/pse_core.c b/drivers/net/pse-pd/pse_core.c
index 9fee4dd53515..432b6c2c04f8 100644
--- a/drivers/net/pse-pd/pse_core.c
+++ b/drivers/net/pse-pd/pse_core.c
@@ -877,6 +877,9 @@ int pse_ethtool_set_pw_limit(struct pse_control *psec,
int uV, uA, ret;
s64 tmp_64;
+ if (pw_limit > MAX_PI_PW)
+ return -ERANGE;
+
ret = regulator_get_voltage(psec->ps);
if (!ret) {
NL_SET_ERR_MSG(extack,
diff --git a/include/linux/pse-pd/pse.h b/include/linux/pse-pd/pse.h
index 85a08c349256..bc5addccbf32 100644
--- a/include/linux/pse-pd/pse.h
+++ b/include/linux/pse-pd/pse.h
@@ -11,6 +11,8 @@
/* Maximum current in uA according to IEEE 802.3-2022 Table 145-1 */
#define MAX_PI_CURRENT 1920000
+/* Maximum power in mW according to IEEE 802.3-2022 Table 145-16 */
+#define MAX_PI_PW 99900
struct phy_device;
struct pse_controller_dev;