bpf: Expose a bpf_sock_from_file helper to tracing programs

[kernel-patches-bot]

Pull request for series with
subject: bpf: Expose a bpf_sock_from_file helper to tracing programs
version: 1
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=383081

[kernel-patches-bot]

Master branch: 9602182
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=383081
version: 1

Pull request is NOT updated. Failed to apply https://patchwork.kernel.org/project/netdevbpf/list/?series=383081
error message:

Cmd('git') failed due to: exit code(128)
  cmdline: git am -3
  stdout: 'Applying: bpf: Expose a bpf_sock_from_file helper to tracing programs
Using index info to reconstruct a base tree...
M	include/uapi/linux/bpf.h
M	kernel/trace/bpf_trace.c
M	scripts/bpf_helpers_doc.py
M	tools/include/uapi/linux/bpf.h
Falling back to patching base and 3-way merge...
Auto-merging tools/include/uapi/linux/bpf.h
CONFLICT (content): Merge conflict in tools/include/uapi/linux/bpf.h
Auto-merging scripts/bpf_helpers_doc.py
Auto-merging kernel/trace/bpf_trace.c
Auto-merging include/uapi/linux/bpf.h
CONFLICT (content): Merge conflict in include/uapi/linux/bpf.h
Patch failed at 0001 bpf: Expose a bpf_sock_from_file helper to tracing programs
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".'
  stderr: 'error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch' to see the failed patch'

conflict:

diff --cc include/uapi/linux/bpf.h
index e6ceac3f7d62,6c96bf9c1f94..000000000000
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@@ -3742,6 -3743,56 +3742,59 @@@ union bpf_attr 
   * 	Return
   * 		The helper returns **TC_ACT_REDIRECT** on success or
   * 		**TC_ACT_SHOT** on error.
++<<<<<<< HEAD
++=======
+  *
+  * void *bpf_task_storage_get(struct bpf_map *map, struct task_struct *task, void *value, u64 flags)
+  *	Description
+  *		Get a bpf_local_storage from the *task*.
+  *
+  *		Logically, it could be thought of as getting the value from
+  *		a *map* with *task* as the **key**.  From this
+  *		perspective,  the usage is not much different from
+  *		**bpf_map_lookup_elem**\ (*map*, **&**\ *task*) except this
+  *		helper enforces the key must be an task_struct and the map must also
+  *		be a **BPF_MAP_TYPE_TASK_STORAGE**.
+  *
+  *		Underneath, the value is stored locally at *task* instead of
+  *		the *map*.  The *map* is used as the bpf-local-storage
+  *		"type". The bpf-local-storage "type" (i.e. the *map*) is
+  *		searched against all bpf_local_storage residing at *task*.
+  *
+  *		An optional *flags* (**BPF_LOCAL_STORAGE_GET_F_CREATE**) can be
+  *		used such that a new bpf_local_storage will be
+  *		created if one does not exist.  *value* can be used
+  *		together with **BPF_LOCAL_STORAGE_GET_F_CREATE** to specify
+  *		the initial value of a bpf_local_storage.  If *value* is
+  *		**NULL**, the new bpf_local_storage will be zero initialized.
+  *	Return
+  *		A bpf_local_storage pointer is returned on success.
+  *
+  *		**NULL** if not found or there was an error in adding
+  *		a new bpf_local_storage.
+  *
+  * long bpf_task_storage_delete(struct bpf_map *map, struct task_struct *task)
+  *	Description
+  *		Delete a bpf_local_storage from a *task*.
+  *	Return
+  *		0 on success.
+  *
+  *		**-ENOENT** if the bpf_local_storage cannot be found.
+  *
+  * struct task_struct *bpf_get_current_task_btf(void)
+  *	Description
+  *		Return a BTF pointer to the "current" task.
+  *		This pointer can also be used in helpers that accept an
+  *		*ARG_PTR_TO_BTF_ID* of type *task_struct*.
+  *	Return
+  *		Pointer to the current task.
+  *
+  * struct socket *bpf_sock_from_file(struct file *file)
+  *	Description
+  *		If the given file contains a socket, returns the associated socket.
+  *	Return
+  *		A pointer to a struct socket on success, or NULL on failure.
++>>>>>>> bpf: Expose a bpf_sock_from_file helper to tracing programs
   */
  #define __BPF_FUNC_MAPPER(FN)		\
  	FN(unspec),			\
@@@ -3900,6 -3951,10 +3953,13 @@@
  	FN(bpf_per_cpu_ptr),            \
  	FN(bpf_this_cpu_ptr),		\
  	FN(redirect_peer),		\
++<<<<<<< HEAD
++=======
+ 	FN(task_storage_get),		\
+ 	FN(task_storage_delete),	\
+ 	FN(get_current_task_btf),	\
+ 	FN(sock_from_file),		\
++>>>>>>> bpf: Expose a bpf_sock_from_file helper to tracing programs
  	/* */
  
  /* integer value in 'imm' field of BPF_CALL instruction selects which helper
diff --cc tools/include/uapi/linux/bpf.h
index e6ceac3f7d62,6c96bf9c1f94..000000000000
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@@ -3742,6 -3743,56 +3742,59 @@@ union bpf_attr 
   * 	Return
   * 		The helper returns **TC_ACT_REDIRECT** on success or
   * 		**TC_ACT_SHOT** on error.
++<<<<<<< HEAD
++=======
+  *
+  * void *bpf_task_storage_get(struct bpf_map *map, struct task_struct *task, void *value, u64 flags)
+  *	Description
+  *		Get a bpf_local_storage from the *task*.
+  *
+  *		Logically, it could be thought of as getting the value from
+  *		a *map* with *task* as the **key**.  From this
+  *		perspective,  the usage is not much different from
+  *		**bpf_map_lookup_elem**\ (*map*, **&**\ *task*) except this
+  *		helper enforces the key must be an task_struct and the map must also
+  *		be a **BPF_MAP_TYPE_TASK_STORAGE**.
+  *
+  *		Underneath, the value is stored locally at *task* instead of
+  *		the *map*.  The *map* is used as the bpf-local-storage
+  *		"type". The bpf-local-storage "type" (i.e. the *map*) is
+  *		searched against all bpf_local_storage residing at *task*.
+  *
+  *		An optional *flags* (**BPF_LOCAL_STORAGE_GET_F_CREATE**) can be
+  *		used such that a new bpf_local_storage will be
+  *		created if one does not exist.  *value* can be used
+  *		together with **BPF_LOCAL_STORAGE_GET_F_CREATE** to specify
+  *		the initial value of a bpf_local_storage.  If *value* is
+  *		**NULL**, the new bpf_local_storage will be zero initialized.
+  *	Return
+  *		A bpf_local_storage pointer is returned on success.
+  *
+  *		**NULL** if not found or there was an error in adding
+  *		a new bpf_local_storage.
+  *
+  * long bpf_task_storage_delete(struct bpf_map *map, struct task_struct *task)
+  *	Description
+  *		Delete a bpf_local_storage from a *task*.
+  *	Return
+  *		0 on success.
+  *
+  *		**-ENOENT** if the bpf_local_storage cannot be found.
+  *
+  * struct task_struct *bpf_get_current_task_btf(void)
+  *	Description
+  *		Return a BTF pointer to the "current" task.
+  *		This pointer can also be used in helpers that accept an
+  *		*ARG_PTR_TO_BTF_ID* of type *task_struct*.
+  *	Return
+  *		Pointer to the current task.
+  *
+  * struct socket *bpf_sock_from_file(struct file *file)
+  *	Description
+  *		If the given file contains a socket, returns the associated socket.
+  *	Return
+  *		A pointer to a struct socket on success, or NULL on failure.
++>>>>>>> bpf: Expose a bpf_sock_from_file helper to tracing programs
   */
  #define __BPF_FUNC_MAPPER(FN)		\
  	FN(unspec),			\
@@@ -3900,6 -3951,10 +3953,13 @@@
  	FN(bpf_per_cpu_ptr),            \
  	FN(bpf_this_cpu_ptr),		\
  	FN(redirect_peer),		\
++<<<<<<< HEAD
++=======
+ 	FN(task_storage_get),		\
+ 	FN(task_storage_delete),	\
+ 	FN(get_current_task_btf),	\
+ 	FN(sock_from_file),		\
++>>>>>>> bpf: Expose a bpf_sock_from_file helper to tracing programs
  	/* */
  
  /* integer value in 'imm' field of BPF_CALL instruction selects which helper

[kernel-patches-bot]

At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=383081 expired. Closing PR.