From e026a65af167699f0b86a31eb2b361a78dbe8b8b Mon Sep 17 00:00:00 2001 From: =?utf8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Thu, 23 Feb 2023 11:34:32 +0100 Subject: [PATCH] kernel: backport eth_addr_add() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit It's required by upcoming NVMEM layout drivers. Signed-off-by: Rafał Miłecki --- .../910-unaligned_access_hacks.patch | 4 +- .../910-unaligned_access_hacks.patch | 4 +- ...632-v6.3-net-add-helper-eth_addr_add.patch | 41 +++++++++++++++++++ ...611-v6.3-net-add-helper-eth_addr_add.patch | 41 +++++++++++++++++++ 4 files changed, 86 insertions(+), 4 deletions(-) create mode 100644 target/linux/generic/backport-5.10/632-v6.3-net-add-helper-eth_addr_add.patch create mode 100644 target/linux/generic/backport-5.15/611-v6.3-net-add-helper-eth_addr_add.patch diff --git a/target/linux/ath79/patches-5.10/910-unaligned_access_hacks.patch b/target/linux/ath79/patches-5.10/910-unaligned_access_hacks.patch index e1c5c59c14..05fe0c7b20 100644 --- a/target/linux/ath79/patches-5.10/910-unaligned_access_hacks.patch +++ b/target/linux/ath79/patches-5.10/910-unaligned_access_hacks.patch @@ -833,7 +833,7 @@ SVN-Revision: 35130 *sum = csum_fold(csum_partial(diff, sizeof(diff), --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h -@@ -499,7 +499,7 @@ static inline bool is_etherdev_addr(cons +@@ -513,7 +513,7 @@ static inline bool is_etherdev_addr(cons * @b: Pointer to Ethernet header * * Compare two Ethernet headers, returns 0 if equal. @@ -842,7 +842,7 @@ SVN-Revision: 35130 * aligned OR the platform can handle unaligned access. This is the * case for all packets coming into netif_receive_skb or similar * entry points. -@@ -522,11 +522,12 @@ static inline unsigned long compare_ethe +@@ -536,11 +536,12 @@ static inline unsigned long compare_ethe fold |= *(unsigned long *)(a + 6) ^ *(unsigned long *)(b + 6); return fold; #else diff --git a/target/linux/ath79/patches-5.15/910-unaligned_access_hacks.patch b/target/linux/ath79/patches-5.15/910-unaligned_access_hacks.patch index 5b10dd6288..88693d5f1a 100644 --- a/target/linux/ath79/patches-5.15/910-unaligned_access_hacks.patch +++ b/target/linux/ath79/patches-5.15/910-unaligned_access_hacks.patch @@ -829,7 +829,7 @@ SVN-Revision: 35130 *sum = csum_fold(csum_partial(diff, sizeof(diff), --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h -@@ -511,7 +511,7 @@ static inline bool is_etherdev_addr(cons +@@ -525,7 +525,7 @@ static inline bool is_etherdev_addr(cons * @b: Pointer to Ethernet header * * Compare two Ethernet headers, returns 0 if equal. @@ -838,7 +838,7 @@ SVN-Revision: 35130 * aligned OR the platform can handle unaligned access. This is the * case for all packets coming into netif_receive_skb or similar * entry points. -@@ -534,11 +534,12 @@ static inline unsigned long compare_ethe +@@ -548,11 +548,12 @@ static inline unsigned long compare_ethe fold |= *(unsigned long *)(a + 6) ^ *(unsigned long *)(b + 6); return fold; #else diff --git a/target/linux/generic/backport-5.10/632-v6.3-net-add-helper-eth_addr_add.patch b/target/linux/generic/backport-5.10/632-v6.3-net-add-helper-eth_addr_add.patch new file mode 100644 index 0000000000..ac556e53af --- /dev/null +++ b/target/linux/generic/backport-5.10/632-v6.3-net-add-helper-eth_addr_add.patch @@ -0,0 +1,41 @@ +From 7390609b0121a1b982c5ecdfcd72dc328e5784ee Mon Sep 17 00:00:00 2001 +From: Michael Walle +Date: Mon, 6 Feb 2023 13:43:42 +0000 +Subject: [PATCH] net: add helper eth_addr_add() + +Add a helper to add an offset to a ethernet address. This comes in handy +if you have a base ethernet address for multiple interfaces. + +Signed-off-by: Michael Walle +Reviewed-by: Andrew Lunn +Acked-by: Jakub Kicinski +Signed-off-by: Srinivas Kandagatla +Link: https://lore.kernel.org/r/20230206134356.839737-9-srinivas.kandagatla@linaro.org +Signed-off-by: Greg Kroah-Hartman +--- + include/linux/etherdevice.h | 14 ++++++++++++++ + 1 file changed, 14 insertions(+) + +--- a/include/linux/etherdevice.h ++++ b/include/linux/etherdevice.h +@@ -466,6 +466,20 @@ static inline void eth_addr_inc(u8 *addr + } + + /** ++ * eth_addr_add() - Add (or subtract) an offset to/from the given MAC address. ++ * ++ * @offset: Offset to add. ++ * @addr: Pointer to a six-byte array containing Ethernet address to increment. ++ */ ++static inline void eth_addr_add(u8 *addr, long offset) ++{ ++ u64 u = ether_addr_to_u64(addr); ++ ++ u += offset; ++ u64_to_ether_addr(u, addr); ++} ++ ++/** + * is_etherdev_addr - Tell if given Ethernet address belongs to the device. + * @dev: Pointer to a device structure + * @addr: Pointer to a six-byte array containing the Ethernet address diff --git a/target/linux/generic/backport-5.15/611-v6.3-net-add-helper-eth_addr_add.patch b/target/linux/generic/backport-5.15/611-v6.3-net-add-helper-eth_addr_add.patch new file mode 100644 index 0000000000..c5d5d2c3a9 --- /dev/null +++ b/target/linux/generic/backport-5.15/611-v6.3-net-add-helper-eth_addr_add.patch @@ -0,0 +1,41 @@ +From 7390609b0121a1b982c5ecdfcd72dc328e5784ee Mon Sep 17 00:00:00 2001 +From: Michael Walle +Date: Mon, 6 Feb 2023 13:43:42 +0000 +Subject: [PATCH] net: add helper eth_addr_add() + +Add a helper to add an offset to a ethernet address. This comes in handy +if you have a base ethernet address for multiple interfaces. + +Signed-off-by: Michael Walle +Reviewed-by: Andrew Lunn +Acked-by: Jakub Kicinski +Signed-off-by: Srinivas Kandagatla +Link: https://lore.kernel.org/r/20230206134356.839737-9-srinivas.kandagatla@linaro.org +Signed-off-by: Greg Kroah-Hartman +--- + include/linux/etherdevice.h | 14 ++++++++++++++ + 1 file changed, 14 insertions(+) + +--- a/include/linux/etherdevice.h ++++ b/include/linux/etherdevice.h +@@ -478,6 +478,20 @@ static inline void eth_addr_inc(u8 *addr + } + + /** ++ * eth_addr_add() - Add (or subtract) an offset to/from the given MAC address. ++ * ++ * @offset: Offset to add. ++ * @addr: Pointer to a six-byte array containing Ethernet address to increment. ++ */ ++static inline void eth_addr_add(u8 *addr, long offset) ++{ ++ u64 u = ether_addr_to_u64(addr); ++ ++ u += offset; ++ u64_to_ether_addr(u, addr); ++} ++ ++/** + * is_etherdev_addr - Tell if given Ethernet address belongs to the device. + * @dev: Pointer to a device structure + * @addr: Pointer to a six-byte array containing the Ethernet address -- 2.30.2