mac80211: rename patches to use all prefixes
[15.05/openwrt.git] / package / kernel / mac80211 / patches / 352-brcmfmac-support-NVRAMs-containing-pci-devpaths-inst.patch
diff --git a/package/kernel/mac80211/patches/352-brcmfmac-support-NVRAMs-containing-pci-devpaths-inst.patch b/package/kernel/mac80211/patches/352-brcmfmac-support-NVRAMs-containing-pci-devpaths-inst.patch
new file mode 100644 (file)
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@@ -0,0 +1,56 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Thu, 28 May 2015 14:19:21 +0200
+Subject: [PATCH] brcmfmac: support NVRAMs containing pci devpaths (instead of
+ pcie)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Recently Broadcom added support for NVRAMs with entries for multiple
+PCIe devices. One of the supported formats is based on prefixes defined
+like: devpath0=pcie/1/4/ and entries like 0:foo=bar 0:baz=qux etc.
+
+Unfortunately there are also a bit older devices using different way of
+defining prefixes, e.g. SmartRG SR400ac (2 x BCM43602) with entries:
+devpath0=pci/1/1/
+devpath1=pci/2/1
+Broadcom stated this old format will never be used/supported by brcmfmac
+but given the simplicity of this patch I'll insist on supporting it.
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
+---
+
+--- a/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
++++ b/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
+@@ -232,6 +232,8 @@ static void brcmf_fw_strip_multi_v1(stru
+                                   u16 bus_nr)
+ {
+       /* Device path with a leading '=' key-value separator */
++      char pci_path[] = "=pci/?/?";
++      size_t pci_len;
+       char pcie_path[] = "=pcie/?/?";
+       size_t pcie_len;
+@@ -251,6 +253,9 @@ static void brcmf_fw_strip_multi_v1(stru
+       /* First search for the devpathX and see if it is the configuration
+        * for domain_nr/bus_nr. Search complete nvp
+        */
++      snprintf(pci_path, sizeof(pci_path), "=pci/%d/%d", domain_nr,
++               bus_nr);
++      pci_len = strlen(pci_path);
+       snprintf(pcie_path, sizeof(pcie_path), "=pcie/%d/%d", domain_nr,
+                bus_nr);
+       pcie_len = strlen(pcie_path);
+@@ -260,8 +265,9 @@ static void brcmf_fw_strip_multi_v1(stru
+               /* Format: devpathX=pcie/Y/Z/
+                * Y = domain_nr, Z = bus_nr, X = virtual ID
+                */
+-              if ((strncmp(&nvp->nvram[i], "devpath", 7) == 0) &&
+-                  (strncmp(&nvp->nvram[i + 8], pcie_path, pcie_len) == 0)) {
++              if (strncmp(&nvp->nvram[i], "devpath", 7) == 0 &&
++                  (!strncmp(&nvp->nvram[i + 8], pci_path, pci_len) ||
++                   !strncmp(&nvp->nvram[i + 8], pcie_path, pcie_len))) {
+                       id = nvp->nvram[i + 7] - '0';
+                       found = true;
+                       break;