From e236b954232808001f522c4b79df97b8c9262a4a Mon Sep 17 00:00:00 2001
From: Ivan Vecera <ivecera@redhat.com>
Date: Thu, 28 May 2015 23:10:06 +0200
Subject: [PATCH] bna: fix firmware loading on big-endian machines
Firmware required by bna is stored in appropriate files as sequence
of LE32 integers. After loading by request_firmware() they need to be
byte-swapped on big-endian arches. Without this conversion the NIC
is unusable on big-endian machines.
Cc: Rasesh Mody <rasesh.mody@qlogic.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/brocade/bna/cna_fwimg.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/net/ethernet/brocade/bna/cna_fwimg.c b/drivers/net/ethernet/brocade/bna/cna_fwimg.c
index ebf462d8082f7..badea368bdc89 100644
--- a/drivers/net/ethernet/brocade/bna/cna_fwimg.c
+++ b/drivers/net/ethernet/brocade/bna/cna_fwimg.c
@@ -30,6 +30,7 @@ cna_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
u32 *bfi_image_size, char *fw_name)
{
const struct firmware *fw;
+ u32 n;
if (request_firmware(&fw, fw_name, &pdev->dev)) {
pr_alert("Can't locate firmware %s\n", fw_name);
@@ -40,6 +41,12 @@ cna_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
*bfi_image_size = fw->size/sizeof(u32);
bfi_fw = fw;
+ /* Convert loaded firmware to host order as it is stored in file
+ * as sequence of LE32 integers.
+ */
+ for (n = 0; n < *bfi_image_size; n++)
+ le32_to_cpus(*bfi_image + n);
+
return *bfi_image;
error:
return NULL;
--
GitLab