From: Michael Chan <michael.chan@broadcom.com>
Date: Tue, 11 Jul 2017 13:05:36 -0400
Subject: bnxt_en: Fix SRIOV on big-endian architecture.
Patch-mainline: v4.13-rc1
Git-commit: 9b0436c3f29483ca91d890b0072c0c02e2e535ed
References: bsc#1050242 FATE#322914

The PF driver sets up a list of firmware commands from the VF driver that
needs to be forwarded to the PF for approval.  This list is a 256-bit
bitmap.  The code that sets up the bitmap falls apart on big-endian
architecture.  __set_bit() does not work because it operates on long types
whereas the firmware interface is defined in u32 types, causing bits in
the wrong 32-bit word to be set.

Fix it by setting the proper bits on an array of u32.

Fixes: de68f5de5651 ("bnxt_en: Fix bitmap declaration to work on 32-bit arches.")
Reported-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c |   15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -3458,13 +3458,18 @@ static int bnxt_hwrm_func_drv_rgtr(struc
 	req.ver_upd = DRV_VER_UPD;
 
 	if (BNXT_PF(bp)) {
-		DECLARE_BITMAP(vf_req_snif_bmap, 256);
-		u32 *data = (u32 *)vf_req_snif_bmap;
+		u32 data[8];
 		int i;
 
-		memset(vf_req_snif_bmap, 0, sizeof(vf_req_snif_bmap));
-		for (i = 0; i < ARRAY_SIZE(bnxt_vf_req_snif); i++)
-			__set_bit(bnxt_vf_req_snif[i], vf_req_snif_bmap);
+		memset(data, 0, sizeof(data));
+		for (i = 0; i < ARRAY_SIZE(bnxt_vf_req_snif); i++) {
+			u16 cmd = bnxt_vf_req_snif[i];
+			unsigned int bit, idx;
+
+			idx = cmd / 32;
+			bit = cmd % 32;
+			data[idx] |= 1 << bit;
+		}
 
 		for (i = 0; i < 8; i++)
 			req.vf_req_fwd[i] = cpu_to_le32(data[i]);