[PATCH AUTOSEL 4.9 08/25] mac80211: fix unaligned access in mesh table hash function

[PATCH AUTOSEL 4.9 08/25] mac80211: fix unaligned access in mesh table hash function

[Sasha Levin]

From: Felix Fietkau <nbd@nbd.name>

[ Upstream commit 40586e3fc400c00c11151804dcdc93f8c831c808 ]

The pointer to the last four bytes of the address is not guaranteed to be
aligned, so we need to use __get_unaligned_cpu32 here

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/mesh_pathtbl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 197753ad50b4..8c17d498df30 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -23,7 +23,7 @@ static void mesh_path_free_rcu(struct mesh_table *tbl, struct mesh_path *mpath);
 static u32 mesh_table_hash(const void *addr, u32 len, u32 seed)
 {
 	/* Use last four bytes of hw addr as hash index */
-	return jhash_1word(*(u32 *)(addr+2), seed);
+	return jhash_1word(__get_unaligned_cpu32((u8 *)addr + 2), seed);
 }
 
 static const struct rhashtable_params mesh_rht_params = {
-- 
2.20.1

[PATCH AUTOSEL 4.9 24/25] spi: ST ST95HF NFC: declare missing of table

[Sasha Levin]

From: Daniel Gomez <dagmcr@gmail.com>

[ Upstream commit d04830531d0c4a99c897a44038e5da3d23331d2f ]

Add missing <of_device_id> table for SPI driver relying on SPI
device match since compatible is in a DT binding or in a DTS.

Before this patch:
modinfo drivers/nfc/st95hf/st95hf.ko | grep alias
alias:          spi:st95hf

After this patch:
modinfo drivers/nfc/st95hf/st95hf.ko | grep alias
alias:          spi:st95hf
alias:          of:N*T*Cst,st95hfC*
alias:          of:N*T*Cst,st95hf

Reported-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Daniel Gomez <dagmcr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nfc/st95hf/core.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/nfc/st95hf/core.c b/drivers/nfc/st95hf/core.c
index c2840e412962..850e75571c8e 100644
--- a/drivers/nfc/st95hf/core.c
+++ b/drivers/nfc/st95hf/core.c
@@ -1074,6 +1074,12 @@ static const struct spi_device_id st95hf_id[] = {
 };
 MODULE_DEVICE_TABLE(spi, st95hf_id);
 
+static const struct of_device_id st95hf_spi_of_match[] = {
+        { .compatible = "st,st95hf" },
+        { },
+};
+MODULE_DEVICE_TABLE(of, st95hf_spi_of_match);
+
 static int st95hf_probe(struct spi_device *nfc_spi_dev)
 {
 	int ret;
@@ -1260,6 +1266,7 @@ static struct spi_driver st95hf_driver = {
 	.driver = {
 		.name = "st95hf",
 		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(st95hf_spi_of_match),
 	},
 	.id_table = st95hf_id,
 	.probe = st95hf_probe,
-- 
2.20.1