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From: Hauke Mehrtens <hauke@hauke-m.de>
To: backports@vger.kernel.org
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Subject: [PATCH 17/18] header: fix of_get_mac_address()
Date: Mon,  1 Jul 2019 23:49:13 +0200
Message-ID: <20190701214914.8066-19-hauke@hauke-m.de> (raw)
In-Reply-To: <20190701214914.8066-1-hauke@hauke-m.de>

The behavior of of_get_mac_address() changed in kernel 5.2, it now
returns an error code and not NULL in case of an error.

This was changed in upstream kernel commit d01f449c008a
("of_net: add NVMEM support to of_get_mac_address")

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
 backport/backport-include/linux/of_net.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/backport/backport-include/linux/of_net.h b/backport/backport-include/linux/of_net.h
index 7f4b688f..18becf5c 100644
--- a/backport/backport-include/linux/of_net.h
+++ b/backport/backport-include/linux/of_net.h
@@ -12,4 +12,20 @@ static inline const void *of_get_mac_address(struct device_node *np)
 #endif
 #endif
 
+/* The behavior of of_get_mac_address() changed in kernel 5.2, it now
+ * returns an error code and not NULL in case of an error.
+ */
+#if LINUX_VERSION_IS_LESS(5,2,0)
+static inline const void *backport_of_get_mac_address(struct device_node *np)
+{
+	const void *mac = of_get_mac_address(np);
+
+	if (!mac)
+		return ERR_PTR(-ENODEV);
+
+	return mac;
+}
+#define of_get_mac_address LINUX_BACKPORT(of_get_mac_address)
+#endif /* < 5.2 */
+
 #endif /* _BP_OF_NET_H */
-- 
2.20.1

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Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-01 21:48 [PATCH 00/18] backports: Update for kernel 5.2 Hauke Mehrtens
2019-07-01 21:48 ` [PATCH 01/18] patches: update select queue patches Hauke Mehrtens
2019-07-01 21:48 ` [PATCH 02/18] backport: rcupdate: add rcu_head_init and rcu_head_after_call_rcu Hauke Mehrtens
2019-07-01 21:48 ` [PATCH 03/18] backport: check for failure when allocating ops in genetlink Hauke Mehrtens
2019-07-01 21:48 ` [PATCH 04/18] backport-include: add empty lockdep_map structure in lockdep.h Hauke Mehrtens
2019-07-01 21:49 ` [PATCH 05/18] patches: Make patches apply on top of kernel 5.2-rc6 Hauke Mehrtens
2019-07-01 21:49 ` [PATCH 06/18] backport: Extend netlink parsing with strict validation Hauke Mehrtens
2019-07-01 21:49 ` [PATCH 07/18] header: Add backport-include/net/ipv6_stubs.h Hauke Mehrtens
2019-07-01 21:49 ` [PATCH 08/18] header: Add sdio_retune*() functions Hauke Mehrtens
2019-07-01 21:49 ` [PATCH 09/18] header: Add HRTIMER_MODE_{ABS,REL}_SOFT Hauke Mehrtens
2019-07-01 21:49 ` [PATCH 10/18] patch: Remove usage of DMI_PRODUCT_SKU Hauke Mehrtens
2019-07-01 21:49 ` [PATCH 11/18] header: Make napi_complete_done() return bool Hauke Mehrtens
2019-07-01 21:49 ` [PATCH 12/18] header: add hrtimer_forward() and ns_to_ktime() Hauke Mehrtens
2019-07-01 21:49 ` [PATCH 13/18] dependencies: Add MT7615E dependency Hauke Mehrtens
2019-07-01 21:49 ` [PATCH 14/18] patches: rtw88: Add missing include on kernel 3.18 Hauke Mehrtens
2019-07-01 21:49 ` [PATCH 14/18] " Hauke Mehrtens
2019-07-01 21:49 ` [PATCH 15/18] header: Remove include/net/inet_frag.h Hauke Mehrtens
2019-07-01 21:49 ` [PATCH 16/18] defconfig: update wifi defconfig Hauke Mehrtens
2019-07-01 21:49 ` Hauke Mehrtens [this message]
2019-07-01 21:49 ` [PATCH 18/18] header: add support for GCC7 and GCC8 Hauke Mehrtens
2019-07-02  7:44   ` Johannes Berg

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