[PATCH 26/30] backports: Add netif_rx_any_context()

Add the netif_rx_any_context which was added in commit c11171a41338
("net: Add netif_rx_any_context()") in kernel 5.10. This is used by
libertas and mwifiex.

Signed-off-by: Hauke Mehrtens <[email protected]>
---
 backport/backport-include/linux/netdevice.h |  5 +++++
 backport/compat/Makefile                    |  1 +
 backport/compat/backport-5.10.c             | 20 ++++++++++++++++++++
 3 files changed, 26 insertions(+)
 create mode 100644 backport/compat/backport-5.10.c

diff --git a/backport/backport-include/linux/netdevice.h b/backport/backport-include/linux/netdevice.h
index 7646d6e2..411757d2 100644
--- a/backport/backport-include/linux/netdevice.h
+++ b/backport/backport-include/linux/netdevice.h
@@ -400,4 +400,9 @@ static inline bool netif_is_bridge_port(const struct net_device *dev)
 }
 #endif
 
+#if LINUX_VERSION_IS_LESS(5,10,0)
+#define netif_rx_any_context LINUX_BACKPORT(netif_rx_any_context)
+int netif_rx_any_context(struct sk_buff *skb);
+#endif /* < 5.10 */
+
 #endif /* __BACKPORT_NETDEVICE_H */
diff --git a/backport/compat/Makefile b/backport/compat/Makefile
index 8d917622..b67ebc27 100644
--- a/backport/compat/Makefile
+++ b/backport/compat/Makefile
@@ -40,6 +40,7 @@ compat-$(CPTCFG_KERNEL_4_18) += backport-4.18.o
 compat-$(CPTCFG_KERNEL_5_2) += backport-5.2.o backport-genetlink.o
 compat-$(CPTCFG_KERNEL_5_3) += backport-5.3.o
 compat-$(CPTCFG_KERNEL_5_5) += backport-5.5.o
+compat-$(CPTCFG_KERNEL_5_10) += backport-5.10.o
 
 compat-$(CPTCFG_BPAUTO_BUILD_SYSTEM_DATA_VERIFICATION) += verification/verify.o
 compat-$(CPTCFG_BPAUTO_BUILD_SYSTEM_DATA_VERIFICATION) += verification/pkcs7.asn1.o
diff --git a/backport/compat/backport-5.10.c b/backport/compat/backport-5.10.c
new file mode 100644
index 00000000..a83907f4
--- /dev/null
+++ b/backport/compat/backport-5.10.c
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/export.h>
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+
+int netif_rx_any_context(struct sk_buff *skb)
+{
+	/*
+	 * If invoked from contexts which do not invoke bottom half
+	 * processing either at return from interrupt or when softrqs are
+	 * reenabled, use netif_rx_ni() which invokes bottomhalf processing
+	 * directly.
+	 */
+	if (in_interrupt())
+		return netif_rx(skb);
+	else
+		return netif_rx_ni(skb);
+}
+EXPORT_SYMBOL(netif_rx_any_context);
-- 
2.20.1

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