openwrt/target/linux/generic/backport-5.10/791-v5.13-r8152-adjust-rtl8152_check_firmware-function.patch
Aleksander Jan Bajkowski 210c534ce2 kernel: move rtl8152 patches to generic
This commit moves the patches for the r8152.c driver to the generic
directory. Previously they were only available on the bcm27xx target.
With these patches the Realtek RTL8153C, RTL8153D, RTL8156A and RTL8156B
chips are supported on all targets by the kmod-usb-net-rtl8152 module.
The RTL8156A and RTL8156B are the 2.5Gb/s Ethernet adapters.

The patches have been tested on TP-Link UE300 (RTL8153A) and UNITEK
1313B (RTL8156B).

Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
2022-03-25 18:14:13 +01:00

153 lines
4.2 KiB
Diff

From f10c9edf47d3fa240d965e151a48c670f5035b73 Mon Sep 17 00:00:00 2001
From: Hayes Wang <hayeswang@realtek.com>
Date: Fri, 16 Apr 2021 16:04:33 +0800
Subject: [PATCH] r8152: adjust rtl8152_check_firmware function
commit a8a7be178e81a3d4b6972cbeb0ccd091ca2f9f89 upstream.
Use bits operations to record and check the firmware.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/usb/r8152.c | 51 +++++++++++++++++++++++------------------
1 file changed, 29 insertions(+), 22 deletions(-)
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -875,6 +875,14 @@ struct fw_header {
struct fw_block blocks[];
} __packed;
+enum rtl8152_fw_flags {
+ FW_FLAGS_USB = 0,
+ FW_FLAGS_PLA,
+ FW_FLAGS_START,
+ FW_FLAGS_STOP,
+ FW_FLAGS_NC,
+};
+
/**
* struct fw_mac - a firmware block used by RTL_FW_PLA and RTL_FW_USB.
* The layout of the firmware block is:
@@ -3801,10 +3809,7 @@ static long rtl8152_check_firmware(struc
{
const struct firmware *fw = rtl_fw->fw;
struct fw_header *fw_hdr = (struct fw_header *)fw->data;
- struct fw_mac *pla = NULL, *usb = NULL;
- struct fw_phy_patch_key *start = NULL;
- struct fw_phy_nc *phy_nc = NULL;
- struct fw_block *stop = NULL;
+ unsigned long fw_flags = 0;
long ret = -EFAULT;
int i;
@@ -3833,50 +3838,52 @@ static long rtl8152_check_firmware(struc
goto fail;
goto fw_end;
case RTL_FW_PLA:
- if (pla) {
+ if (test_bit(FW_FLAGS_PLA, &fw_flags)) {
dev_err(&tp->intf->dev,
"multiple PLA firmware encountered");
goto fail;
}
- pla = (struct fw_mac *)block;
- if (!rtl8152_is_fw_mac_ok(tp, pla)) {
+ if (!rtl8152_is_fw_mac_ok(tp, (struct fw_mac *)block)) {
dev_err(&tp->intf->dev,
"check PLA firmware failed\n");
goto fail;
}
+ __set_bit(FW_FLAGS_PLA, &fw_flags);
break;
case RTL_FW_USB:
- if (usb) {
+ if (test_bit(FW_FLAGS_USB, &fw_flags)) {
dev_err(&tp->intf->dev,
"multiple USB firmware encountered");
goto fail;
}
- usb = (struct fw_mac *)block;
- if (!rtl8152_is_fw_mac_ok(tp, usb)) {
+ if (!rtl8152_is_fw_mac_ok(tp, (struct fw_mac *)block)) {
dev_err(&tp->intf->dev,
"check USB firmware failed\n");
goto fail;
}
+ __set_bit(FW_FLAGS_USB, &fw_flags);
break;
case RTL_FW_PHY_START:
- if (start || phy_nc || stop) {
+ if (test_bit(FW_FLAGS_START, &fw_flags) ||
+ test_bit(FW_FLAGS_NC, &fw_flags) ||
+ test_bit(FW_FLAGS_STOP, &fw_flags)) {
dev_err(&tp->intf->dev,
"check PHY_START fail\n");
goto fail;
}
- if (__le32_to_cpu(block->length) != sizeof(*start)) {
+ if (__le32_to_cpu(block->length) != sizeof(struct fw_phy_patch_key)) {
dev_err(&tp->intf->dev,
"Invalid length for PHY_START\n");
goto fail;
}
-
- start = (struct fw_phy_patch_key *)block;
+ __set_bit(FW_FLAGS_START, &fw_flags);
break;
case RTL_FW_PHY_STOP:
- if (stop || !start) {
+ if (test_bit(FW_FLAGS_STOP, &fw_flags) ||
+ !test_bit(FW_FLAGS_START, &fw_flags)) {
dev_err(&tp->intf->dev,
"Check PHY_STOP fail\n");
goto fail;
@@ -3887,28 +3894,28 @@ static long rtl8152_check_firmware(struc
"Invalid length for PHY_STOP\n");
goto fail;
}
-
- stop = block;
+ __set_bit(FW_FLAGS_STOP, &fw_flags);
break;
case RTL_FW_PHY_NC:
- if (!start || stop) {
+ if (!test_bit(FW_FLAGS_START, &fw_flags) ||
+ test_bit(FW_FLAGS_STOP, &fw_flags)) {
dev_err(&tp->intf->dev,
"check PHY_NC fail\n");
goto fail;
}
- if (phy_nc) {
+ if (test_bit(FW_FLAGS_NC, &fw_flags)) {
dev_err(&tp->intf->dev,
"multiple PHY NC encountered\n");
goto fail;
}
- phy_nc = (struct fw_phy_nc *)block;
- if (!rtl8152_is_fw_phy_nc_ok(tp, phy_nc)) {
+ if (!rtl8152_is_fw_phy_nc_ok(tp, (struct fw_phy_nc *)block)) {
dev_err(&tp->intf->dev,
"check PHY NC firmware failed\n");
goto fail;
}
+ __set_bit(FW_FLAGS_NC, &fw_flags);
break;
default:
@@ -3922,7 +3929,7 @@ static long rtl8152_check_firmware(struc
}
fw_end:
- if ((phy_nc || start) && !stop) {
+ if (test_bit(FW_FLAGS_START, &fw_flags) && !test_bit(FW_FLAGS_STOP, &fw_flags)) {
dev_err(&tp->intf->dev, "without PHY_STOP\n");
goto fail;
}