diff options
Diffstat (limited to 'poky/meta/recipes-kernel/lttng/lttng-modules/0006-fix-net-skb-introduce-kfree_skb_reason-v5.17.patch')
| -rw-r--r-- | poky/meta/recipes-kernel/lttng/lttng-modules/0006-fix-net-skb-introduce-kfree_skb_reason-v5.17.patch | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/poky/meta/recipes-kernel/lttng/lttng-modules/0006-fix-net-skb-introduce-kfree_skb_reason-v5.17.patch b/poky/meta/recipes-kernel/lttng/lttng-modules/0006-fix-net-skb-introduce-kfree_skb_reason-v5.17.patch new file mode 100644 index 0000000000..abf74e8441 --- /dev/null +++ b/poky/meta/recipes-kernel/lttng/lttng-modules/0006-fix-net-skb-introduce-kfree_skb_reason-v5.17.patch @@ -0,0 +1,88 @@ +From 6e9d0d578fdf90901507dd9f9929d0e6fcdd3211 Mon Sep 17 00:00:00 2001 +From: Michael Jeanson <mjeanson@efficios.com> +Date: Wed, 26 Jan 2022 14:49:11 -0500 +Subject: [PATCH 6/7] fix: net: skb: introduce kfree_skb_reason() (v5.17) + +See upstream commit : + + commit c504e5c2f9648a1e5c2be01e8c3f59d394192bd3 + Author: Menglong Dong <imagedong@tencent.com> + Date: Sun Jan 9 14:36:26 2022 +0800 + + net: skb: introduce kfree_skb_reason() + + Introduce the interface kfree_skb_reason(), which is able to pass + the reason why the skb is dropped to 'kfree_skb' tracepoint. + + Add the 'reason' field to 'trace_kfree_skb', therefor user can get + more detail information about abnormal skb with 'drop_monitor' or + eBPF. + + All drop reasons are defined in the enum 'skb_drop_reason', and + they will be print as string in 'kfree_skb' tracepoint in format + of 'reason: XXX'. + + ( Maybe the reasons should be defined in a uapi header file, so that + user space can use them? ) + +Upstream-Status: Backport [lttng-modules commit 6e9d0d578fdf90901507dd9f9929d0e6fcdd3211] + +Change-Id: I6766678a288da959498a4736fc3f95bf239c3e94 +Signed-off-by: Michael Jeanson <mjeanson@efficios.com> +Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> +--- + include/instrumentation/events/skb.h | 31 ++++++++++++++++++++++++++++ + 1 file changed, 31 insertions(+) + +diff --git a/include/instrumentation/events/skb.h b/include/instrumentation/events/skb.h +index d6579363..c6d7095d 100644 +--- a/include/instrumentation/events/skb.h ++++ b/include/instrumentation/events/skb.h +@@ -13,6 +13,36 @@ + /* + * Tracepoint for free an sk_buff: + */ ++#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,17,0)) ++LTTNG_TRACEPOINT_ENUM(skb_drop_reason, ++ TP_ENUM_VALUES( ++ ctf_enum_value("NOT_SPECIFIED", SKB_DROP_REASON_NOT_SPECIFIED) ++ ctf_enum_value("NO_SOCKET", SKB_DROP_REASON_NO_SOCKET) ++ ctf_enum_value("PKT_TOO_SMALL", SKB_DROP_REASON_PKT_TOO_SMALL) ++ ctf_enum_value("TCP_CSUM", SKB_DROP_REASON_TCP_CSUM) ++ ctf_enum_value("TCP_FILTER", SKB_DROP_REASON_TCP_FILTER) ++ ctf_enum_value("UDP_CSUM", SKB_DROP_REASON_UDP_CSUM) ++ ctf_enum_value("MAX", SKB_DROP_REASON_MAX) ++ ) ++) ++ ++LTTNG_TRACEPOINT_EVENT_MAP(kfree_skb, ++ ++ skb_kfree, ++ ++ TP_PROTO(struct sk_buff *skb, void *location, ++ enum skb_drop_reason reason), ++ ++ TP_ARGS(skb, location, reason), ++ ++ TP_FIELDS( ++ ctf_integer_hex(void *, skbaddr, skb) ++ ctf_integer_hex(void *, location, location) ++ ctf_integer_network(unsigned short, protocol, skb->protocol) ++ ctf_enum(skb_drop_reason, uint8_t, reason, reason) ++ ) ++) ++#else + LTTNG_TRACEPOINT_EVENT_MAP(kfree_skb, + + skb_kfree, +@@ -27,6 +57,7 @@ LTTNG_TRACEPOINT_EVENT_MAP(kfree_skb, + ctf_integer_network(unsigned short, protocol, skb->protocol) + ) + ) ++#endif + + LTTNG_TRACEPOINT_EVENT_MAP(consume_skb, + +-- +2.19.1 + |