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Date: Fri, 16 Dec 2022 15:31:01 +0100 From: Simon Horman <simon.horman@...igine.com> To: David Miller <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com> Cc: netdev@...r.kernel.org, oss-drivers@...igine.com, Huanhuan Wang <huanhuan.wang@...igine.com>, Niklas Söderlund <niklas.soderlund@...igine.com>, Simon Horman <simon.horman@...igine.com> Subject: [PATCH net] nfp: fix unaligned io read of capabilities word From: Huanhuan Wang <huanhuan.wang@...igine.com> The address of 32-bit extend capability is not qword aligned, and may cause exception in some arch. Fixes: 484963ce9f1e ("nfp: extend capability and control words") Signed-off-by: Huanhuan Wang <huanhuan.wang@...igine.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@...igine.com> Signed-off-by: Simon Horman <simon.horman@...igine.com> --- drivers/net/ethernet/netronome/nfp/nfp_net_common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index 2314cf55e821..09053373288f 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -2509,7 +2509,7 @@ static int nfp_net_read_caps(struct nfp_net *nn) { /* Get some of the read-only fields from the BAR */ nn->cap = nn_readl(nn, NFP_NET_CFG_CAP); - nn->cap_w1 = nn_readq(nn, NFP_NET_CFG_CAP_WORD1); + nn->cap_w1 = nn_readl(nn, NFP_NET_CFG_CAP_WORD1); nn->max_mtu = nn_readl(nn, NFP_NET_CFG_MAX_MTU); /* ABI 4.x and ctrl vNIC always use chained metadata, in other cases -- 2.30.2
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