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Message-Id: <20230404053636.51597-2-mika.westerberg@linux.intel.com>
Date: Tue, 4 Apr 2023 08:36:35 +0300
From: Mika Westerberg <mika.westerberg@...ux.intel.com>
To: "David S . Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>
Cc: Michael Jamet <michael.jamet@...el.com>,
Yehezkel Bernat <YehezkelShB@...il.com>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Mika Westerberg <mika.westerberg@...ux.intel.com>,
netdev@...r.kernel.org
Subject: [PATCH 1/2] net: thunderbolt: Fix sparse warnings
Fixes the following warnings when the driver is built with sparse
checks enabled:
drivers/net/thunderbolt/main.c:767:47: warning: restricted __le32 degrades to integer
drivers/net/thunderbolt/main.c:775:47: warning: restricted __le16 degrades to integer
drivers/net/thunderbolt/main.c:776:44: warning: restricted __le16 degrades to integer
drivers/net/thunderbolt/main.c:876:40: warning: incorrect type in assignment (different base types)
drivers/net/thunderbolt/main.c:876:40: expected restricted __le32 [usertype] frame_size
drivers/net/thunderbolt/main.c:876:40: got unsigned int [assigned] [usertype] frame_size
drivers/net/thunderbolt/main.c:877:41: warning: incorrect type in assignment (different base types)
drivers/net/thunderbolt/main.c:877:41: expected restricted __le32 [usertype] frame_count
drivers/net/thunderbolt/main.c:877:41: got unsigned int [usertype]
drivers/net/thunderbolt/main.c:878:41: warning: incorrect type in assignment (different base types)
drivers/net/thunderbolt/main.c:878:41: expected restricted __le16 [usertype] frame_index
drivers/net/thunderbolt/main.c:878:41: got unsigned short [usertype]
drivers/net/thunderbolt/main.c:879:38: warning: incorrect type in assignment (different base types)
drivers/net/thunderbolt/main.c:879:38: expected restricted __le16 [usertype] frame_id
drivers/net/thunderbolt/main.c:879:38: got unsigned short [usertype]
drivers/net/thunderbolt/main.c:880:62: warning: restricted __le32 degrades to integer
drivers/net/thunderbolt/main.c:880:35: warning: restricted __le16 degrades to integer
drivers/net/thunderbolt/main.c:993:23: warning: incorrect type in initializer (different base types)
drivers/net/thunderbolt/main.c:993:23: expected restricted __wsum [usertype] wsum
drivers/net/thunderbolt/main.c:993:23: got restricted __be32 [usertype]
No functional changes intended.
Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
---
drivers/net/thunderbolt/main.c | 21 ++++++++++++---------
1 file changed, 12 insertions(+), 9 deletions(-)
diff --git a/drivers/net/thunderbolt/main.c b/drivers/net/thunderbolt/main.c
index 26ef3706445e..6a43ced74881 100644
--- a/drivers/net/thunderbolt/main.c
+++ b/drivers/net/thunderbolt/main.c
@@ -764,7 +764,7 @@ static bool tbnet_check_frame(struct tbnet *net, const struct tbnet_frame *tf,
*/
if (net->skb && net->rx_hdr.frame_count) {
/* Check the frame count fits the count field */
- if (frame_count != net->rx_hdr.frame_count) {
+ if (frame_count != le32_to_cpu(net->rx_hdr.frame_count)) {
net->stats.rx_length_errors++;
return false;
}
@@ -772,8 +772,8 @@ static bool tbnet_check_frame(struct tbnet *net, const struct tbnet_frame *tf,
/* Check the frame identifiers are incremented correctly,
* and id is matching.
*/
- if (frame_index != net->rx_hdr.frame_index + 1 ||
- frame_id != net->rx_hdr.frame_id) {
+ if (frame_index != le16_to_cpu(net->rx_hdr.frame_index) + 1 ||
+ frame_id != le16_to_cpu(net->rx_hdr.frame_id)) {
net->stats.rx_missed_errors++;
return false;
}
@@ -873,11 +873,12 @@ static int tbnet_poll(struct napi_struct *napi, int budget)
TBNET_RX_PAGE_SIZE - hdr_size);
}
- net->rx_hdr.frame_size = frame_size;
- net->rx_hdr.frame_count = le32_to_cpu(hdr->frame_count);
- net->rx_hdr.frame_index = le16_to_cpu(hdr->frame_index);
- net->rx_hdr.frame_id = le16_to_cpu(hdr->frame_id);
- last = net->rx_hdr.frame_index == net->rx_hdr.frame_count - 1;
+ net->rx_hdr.frame_size = hdr->frame_size;
+ net->rx_hdr.frame_count = hdr->frame_count;
+ net->rx_hdr.frame_index = hdr->frame_index;
+ net->rx_hdr.frame_id = hdr->frame_id;
+ last = le16_to_cpu(net->rx_hdr.frame_index) ==
+ le32_to_cpu(net->rx_hdr.frame_count) - 1;
rx_packets++;
net->stats.rx_bytes += frame_size;
@@ -990,8 +991,10 @@ static bool tbnet_xmit_csum_and_map(struct tbnet *net, struct sk_buff *skb,
{
struct thunderbolt_ip_frame_header *hdr = page_address(frames[0]->page);
struct device *dma_dev = tb_ring_dma_device(net->tx_ring.ring);
- __wsum wsum = htonl(skb->len - skb_transport_offset(skb));
unsigned int i, len, offset = skb_transport_offset(skb);
+ /* Remove payload length from checksum */
+ u32 paylen = skb->len - skb_transport_offset(skb);
+ __wsum wsum = (__force __wsum)htonl(paylen);
__be16 protocol = skb->protocol;
void *data = skb->data;
void *dest = hdr + 1;
--
2.39.2
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