From 254764e55652d47fe81a54d7c226f3ba230180fe Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Tue, 22 Jan 2019 22:23:41 +0100 Subject: r8169: improve firmware handling So far member rtl_fw has three states: - IS_ERR(rtl_fw): firmware not loaded - !rtl_fw: no firmware available - other: firmware loaded This can be made simpler and clearer by adding the firmware name as member fw_name to struct rtl8169_private. Then: - !fw_name: no firmware available - !rtl_fw: firmware not loaded - rtl_fw: firmware loaded This change also allows to easily merge rtl_request_uncached_firmware into rtl_request_firmware. Signed-off-by: Heiner Kallweit Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 47 ++++++++++++------------------------ 1 file changed, 15 insertions(+), 32 deletions(-) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 5480073e0026..f574b6b557f9 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -684,6 +684,7 @@ struct rtl8169_private { struct rtl8169_tc_offsets tc_offset; u32 saved_wolopts; + const char *fw_name; struct rtl_fw { const struct firmware *fw; @@ -696,7 +697,6 @@ struct rtl8169_private { size_t size; } phy_action; } *rtl_fw; -#define RTL_FIRMWARE_UNKNOWN ERR_PTR(-EAGAIN) u32 ocp_base; }; @@ -1510,11 +1510,6 @@ static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) return 0; } -static const char *rtl_lookup_firmware_name(struct rtl8169_private *tp) -{ - return rtl_chip_infos[tp->mac_version].fw_name; -} - static void rtl8169_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { @@ -1524,7 +1519,7 @@ static void rtl8169_get_drvinfo(struct net_device *dev, strlcpy(info->driver, MODULENAME, sizeof(info->driver)); strlcpy(info->bus_info, pci_name(tp->pci_dev), sizeof(info->bus_info)); BUILD_BUG_ON(sizeof(info->fw_version) < sizeof(rtl_fw->version)); - if (!IS_ERR_OR_NULL(rtl_fw)) + if (rtl_fw) strlcpy(info->fw_version, rtl_fw->version, sizeof(info->fw_version)); } @@ -2201,7 +2196,7 @@ static bool rtl_fw_format_ok(struct rtl8169_private *tp, struct rtl_fw *rtl_fw) if (fw->size % FW_OPCODE_SIZE) goto out; - strlcpy(version, rtl_lookup_firmware_name(tp), RTL_VER_SIZE); + strlcpy(version, tp->fw_name, RTL_VER_SIZE); pa->code = (__le32 *)fw->data; pa->size = fw->size / FW_OPCODE_SIZE; @@ -2376,20 +2371,18 @@ static void rtl_phy_write_fw(struct rtl8169_private *tp, struct rtl_fw *rtl_fw) static void rtl_release_firmware(struct rtl8169_private *tp) { - if (!IS_ERR_OR_NULL(tp->rtl_fw)) { + if (tp->rtl_fw) { release_firmware(tp->rtl_fw->fw); kfree(tp->rtl_fw); + tp->rtl_fw = NULL; } - tp->rtl_fw = RTL_FIRMWARE_UNKNOWN; } static void rtl_apply_firmware(struct rtl8169_private *tp) { - struct rtl_fw *rtl_fw = tp->rtl_fw; - /* TODO: release firmware once rtl_phy_write_fw signals failures. */ - if (!IS_ERR_OR_NULL(rtl_fw)) - rtl_phy_write_fw(tp, rtl_fw); + if (tp->rtl_fw) + rtl_phy_write_fw(tp, tp->rtl_fw); } static void rtl_apply_firmware_cond(struct rtl8169_private *tp, u8 reg, u16 val) @@ -4377,21 +4370,20 @@ static void rtl_hw_reset(struct rtl8169_private *tp) rtl_udelay_loop_wait_low(tp, &rtl_chipcmd_cond, 100, 100); } -static void rtl_request_uncached_firmware(struct rtl8169_private *tp) +static void rtl_request_firmware(struct rtl8169_private *tp) { struct rtl_fw *rtl_fw; - const char *name; int rc = -ENOMEM; - name = rtl_lookup_firmware_name(tp); - if (!name) - goto out_no_firmware; + /* firmware loaded already or no firmware available */ + if (tp->rtl_fw || !tp->fw_name) + return; rtl_fw = kzalloc(sizeof(*rtl_fw), GFP_KERNEL); if (!rtl_fw) goto err_warn; - rc = request_firmware(&rtl_fw->fw, name, tp_to_dev(tp)); + rc = request_firmware(&rtl_fw->fw, tp->fw_name, tp_to_dev(tp)); if (rc < 0) goto err_free; @@ -4400,7 +4392,7 @@ static void rtl_request_uncached_firmware(struct rtl8169_private *tp) goto err_release_firmware; tp->rtl_fw = rtl_fw; -out: + return; err_release_firmware: @@ -4409,16 +4401,7 @@ err_free: kfree(rtl_fw); err_warn: netif_warn(tp, ifup, tp->dev, "unable to load firmware patch %s (%d)\n", - name, rc); -out_no_firmware: - tp->rtl_fw = NULL; - goto out; -} - -static void rtl_request_firmware(struct rtl8169_private *tp) -{ - if (IS_ERR(tp->rtl_fw)) - rtl_request_uncached_firmware(tp); + tp->fw_name, rc); } static void rtl_rx_close(struct rtl8169_private *tp) @@ -7331,7 +7314,7 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) tp->irq_mask = RTL_EVENT_NAPI | cfg->irq_mask; tp->coalesce_info = cfg->coalesce_info; - tp->rtl_fw = RTL_FIRMWARE_UNKNOWN; + tp->fw_name = rtl_chip_infos[chipset].fw_name; tp->counters = dmam_alloc_coherent (&pdev->dev, sizeof(*tp->counters), &tp->counters_phys_addr, -- cgit v1.2.3-59-g8ed1b