From 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d Mon Sep 17 00:00:00 2001 From: Zeng Chi Date: Mon, 21 Sep 2026 18:24:42 +0800 Subject: KVM: Don't pre-reserve xarray entries when storing empty/NULL attributes Skip the xarray reservation loop when clearing all memory attributes, as storing NULL only erases the entry and never needs to allocate, so no reservation (and no cleanup of a failed one) is required in that case. Suggested-by: Sean Christopherson Cc: David Ballesteros Signed-off-by: Zeng Chi Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com [sean: split to separate patch] Signed-off-by: Sean Christopherson --- drivers/net/pse-pd/Kconfig | 83 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 drivers/net/pse-pd/Kconfig (limited to 'drivers/net/pse-pd/Kconfig') diff --git a/drivers/net/pse-pd/Kconfig b/drivers/net/pse-pd/Kconfig new file mode 100644 index 000000000..a0f2ae668 --- /dev/null +++ b/drivers/net/pse-pd/Kconfig @@ -0,0 +1,83 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Ethernet Power Sourcing Equipment drivers +# + +menuconfig PSE_CONTROLLER + bool "Ethernet Power Sourcing Equipment Support" + depends on REGULATOR + help + Generic Power Sourcing Equipment Controller support. + + If unsure, say no. + +if PSE_CONTROLLER + +config PSE_REALTEK_MCU + tristate + help + Shared core for the Realtek PSE MCU driver. This is selected + automatically by the transport options below. + +config PSE_REALTEK_MCU_I2C + tristate "Realtek PSE MCU driver (I2C transport)" + depends on I2C + select PSE_REALTEK_MCU + help + Driver for the microcontroller (MCU) that fronts the PSE + hardware on various Realtek-based managed switches, attached + via I2C/SMBus. The MCU exposes a message-based protocol; the actual + PSE silicon is not accessed directly. To compile this driver as a + module, choose M here: the module will be called realtek-pse-mcu-i2c. + +config PSE_REALTEK_MCU_UART + tristate "Realtek PSE MCU driver (UART transport)" + depends on SERIAL_DEV_BUS + select PSE_REALTEK_MCU + help + Driver for the microcontroller (MCU) that fronts the PSE + hardware on various Realtek-based managed switches, attached + via UART. The MCU exposes a message-based protocol; the actual PSE + silicon is not accessed directly. To compile this driver as a + module, choose M here: the module will be called realtek-pse-mcu-uart. + +config PSE_REGULATOR + tristate "Regulator based PSE controller" + help + This module provides support for simple regulator based Ethernet Power + Sourcing Equipment without automatic classification support. For + example for basic implementation of PoDL (802.3bu) specification. + +config PSE_PD692X0 + tristate "PD692X0 PSE controller" + depends on I2C + select FW_LOADER + select FW_UPLOAD + help + This module provides support for PD692x0 regulator based Ethernet + Power Sourcing Equipment. + + To compile this driver as a module, choose M here: the + module will be called pd692x0. + +config PSE_SI3474 + tristate "Si3474 PSE controller" + depends on I2C + help + This module provides support for Si3474 regulator based Ethernet + Power Sourcing Equipment. + Only 4-pair PSE configurations are supported. + + To compile this driver as a module, choose M here: the + module will be called si3474. + +config PSE_TPS23881 + tristate "TPS23881 PSE controller" + depends on I2C + help + This module provides support for TPS23881 regulator based Ethernet + Power Sourcing Equipment. + + To compile this driver as a module, choose M here: the + module will be called tps23881. +endif -- cgit v1.3.1