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| author | Matthew Hagan <mnhagan88@gmail.com> | 2021-09-10 17:59:49 +0000 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2021-10-24 16:56:17 +0200 |
| commit | c757c71fd1a525549ba8610b81e970514d014d25 (patch) | |
| tree | a9a86032c98b8588e616dbbbd3d80719dc4e6df2 /target/linux/generic/backport-5.10/788-v5.14-01-net-dsa-qca8k-fix-an-endian-bug-in-qca8k-get-ethtool.patch | |
| parent | e3c47ff90d765c1fe683b5422006ab1fe3ab718d (diff) | |
| download | upstream-c757c71fd1a525549ba8610b81e970514d014d25.tar.gz upstream-c757c71fd1a525549ba8610b81e970514d014d25.tar.bz2 upstream-c757c71fd1a525549ba8610b81e970514d014d25.zip | |
kernel: 5.10: backport additional qca8k fixes
Backport fixes including:
net: dsa: qca8k: fix missing unlock on error in qca8k_vlan_(add|del)
net: dsa: qca8k: check return value of read functions correctly
net: dsa: qca8k: add missing check return value in qca8k_phylink_mac_config()
net: dsa: qca8k: fix an endian bug in qca8k_get_ethtool_stats()
net: dsa: qca8k: check the correct variable in qca8k_set_mac_eee()
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>
Diffstat (limited to 'target/linux/generic/backport-5.10/788-v5.14-01-net-dsa-qca8k-fix-an-endian-bug-in-qca8k-get-ethtool.patch')
| -rw-r--r-- | target/linux/generic/backport-5.10/788-v5.14-01-net-dsa-qca8k-fix-an-endian-bug-in-qca8k-get-ethtool.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.10/788-v5.14-01-net-dsa-qca8k-fix-an-endian-bug-in-qca8k-get-ethtool.patch b/target/linux/generic/backport-5.10/788-v5.14-01-net-dsa-qca8k-fix-an-endian-bug-in-qca8k-get-ethtool.patch new file mode 100644 index 0000000000..429d5d50f0 --- /dev/null +++ b/target/linux/generic/backport-5.10/788-v5.14-01-net-dsa-qca8k-fix-an-endian-bug-in-qca8k-get-ethtool.patch @@ -0,0 +1,47 @@ +aFrom aa3d020b22cb844ab7bdbb9e5d861a64666e2b74 Mon Sep 17 00:00:00 2001 +From: Dan Carpenter <dan.carpenter@oracle.com> +Date: Wed, 9 Jun 2021 12:52:12 +0300 +Subject: [PATCH] net: dsa: qca8k: fix an endian bug in + qca8k_get_ethtool_stats() + +The "hi" variable is a u64 but the qca8k_read() writes to the top 32 +bits of it. That will work on little endian systems but it's a bit +subtle. It's cleaner to make declare "hi" as a u32. We will still need +to cast it when we shift it later on in the function but that's fine. + +Fixes: 7c9896e37807 ("net: dsa: qca8k: check return value of read functions correctly") +Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> +Reviewed-by: Vladimir Oltean <olteanv@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/dsa/qca8k.c | 6 +++--- + 1 file changed, 3 insertions(+), 3 deletions(-) + +--- a/drivers/net/dsa/qca8k.c ++++ b/drivers/net/dsa/qca8k.c +@@ -1412,7 +1412,7 @@ qca8k_get_ethtool_stats(struct dsa_switc + struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv; + const struct qca8k_mib_desc *mib; + u32 reg, i, val; +- u64 hi = 0; ++ u32 hi = 0; + int ret; + + for (i = 0; i < ARRAY_SIZE(ar8327_mib); i++) { +@@ -1424,14 +1424,14 @@ qca8k_get_ethtool_stats(struct dsa_switc + continue; + + if (mib->size == 2) { +- ret = qca8k_read(priv, reg + 4, (u32 *)&hi); ++ ret = qca8k_read(priv, reg + 4, &hi); + if (ret < 0) + continue; + } + + data[i] = val; + if (mib->size == 2) +- data[i] |= hi << 32; ++ data[i] |= (u64)hi << 32; + } + } + |