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[ethernet] Use stack buffer for hex formatting in very verbose logging (#12742)

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This commit is contained in:
J. Nick Koston
2026-01-01 20:22:19 -10:00
committed by GitHub
parent 2e8baa0493
commit 7702a9ae85
1 changed files with 10 additions and 2 deletions
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12
esphome/components/ethernet/ethernet_component.cpp
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@@ -1,5 +1,6 @@
#include "ethernet_component.h"
#include "esphome/core/application.h"
#include "esphome/core/helpers.h"
#include "esphome/core/log.h"
#include "esphome/core/util.h"
@@ -39,6 +40,9 @@ namespace ethernet {
static const char *const TAG = "ethernet";
// PHY register size for hex logging
static constexpr size_t PHY_REG_SIZE = 2;
EthernetComponent *global_eth_component; // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
void EthernetComponent::log_error_and_mark_failed_(esp_err_t err, const char *message) {
@@ -773,7 +777,10 @@ void EthernetComponent::ksz8081_set_clock_reference_(esp_eth_mac_t *mac) {
uint32_t phy_control_2;
err = mac->read_phy_reg(mac, this->phy_addr_, KSZ80XX_PC2R_REG_ADDR, &(phy_control_2));
ESPHL_ERROR_CHECK(err, "Read PHY Control 2 failed");
ESP_LOGVV(TAG, "KSZ8081 PHY Control 2: %s", format_hex_pretty((u_int8_t *) &phy_control_2, 2).c_str());
#if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERY_VERBOSE
char hex_buf[format_hex_pretty_size(PHY_REG_SIZE)];
#endif
ESP_LOGVV(TAG, "KSZ8081 PHY Control 2: %s", format_hex_pretty_to(hex_buf, (uint8_t *) &phy_control_2, PHY_REG_SIZE));
/*
* Bit 7 is `RMII Reference Clock Select`. Default is `0`.
@@ -790,7 +797,8 @@ void EthernetComponent::ksz8081_set_clock_reference_(esp_eth_mac_t *mac) {
ESPHL_ERROR_CHECK(err, "Write PHY Control 2 failed");
err = mac->read_phy_reg(mac, this->phy_addr_, KSZ80XX_PC2R_REG_ADDR, &(phy_control_2));
ESPHL_ERROR_CHECK(err, "Read PHY Control 2 failed");
ESP_LOGVV(TAG, "KSZ8081 PHY Control 2: %s", format_hex_pretty((u_int8_t *) &phy_control_2, 2).c_str());
ESP_LOGVV(TAG, "KSZ8081 PHY Control 2: %s",
format_hex_pretty_to(hex_buf, (uint8_t *) &phy_control_2, PHY_REG_SIZE));
}
}
#endif // USE_ETHERNET_KSZ8081