[PATCH bpf-next 02/13] docs: Update references to filter.rst

["Tobin C. Harding" <me@tobin.cc>]

Documentation/networking/filter.rst was just renamed.  In order to use RST
references we need to add a label to filter.rst

Add label and update references from filter.txt to filter.rst

Signed-off-by: Tobin C. Harding <me@tobin.cc>
---
 Documentation/bpf/index.rst              | 9 ++++-----
 Documentation/networking/filter.rst      | 2 ++
 Documentation/networking/packet_mmap.txt | 2 +-
 tools/bpf/bpf_asm.c                      | 2 +-
 tools/bpf/bpf_dbg.c                      | 2 +-
 5 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/Documentation/bpf/index.rst b/Documentation/bpf/index.rst
index 00a8450a602f..192393135c61 100644
--- a/Documentation/bpf/index.rst
+++ b/Documentation/bpf/index.rst
@@ -7,10 +7,10 @@ Filter) facility, with a focus on the extended BPF version (eBPF).
 
 This kernel side documentation is still work in progress.  The main
 textual documentation is (for historical reasons) described in
-`Documentation/networking/filter.txt`_, which describe both classical
-and extended BPF instruction-set.
-The Cilium project also maintains a `BPF and XDP Reference Guide`_
-that goes into great technical depth about the BPF Architecture.
+:ref:`Documentation/networking/filter.rst <bpf_filter>`, which describe
+both classical and extended BPF instruction-set.  The Cilium project also
+maintains a `BPF and XDP Reference Guide`_ that goes into great technical
+depth about the BPF Architecture.
 
 The primary info for the bpf syscall is available in the `man-pages`_
 for `bpf(2)`_.
@@ -30,7 +30,6 @@ Two sets of Questions and Answers (Q&A) are maintained.
 
 
 .. Links:
-.. _Documentation/networking/filter.txt: ../networking/filter.txt
 .. _man-pages: https://www.kernel.org/doc/man-pages/
 .. _bpf(2): http://man7.org/linux/man-pages/man2/bpf.2.html
 .. _BPF and XDP Reference Guide: http://cilium.readthedocs.io/en/latest/bpf/
diff --git a/Documentation/networking/filter.rst b/Documentation/networking/filter.rst
index e6b4ebb2b243..14ce8901c245 100644
--- a/Documentation/networking/filter.rst
+++ b/Documentation/networking/filter.rst
@@ -1,6 +1,8 @@
 Linux Socket Filtering aka Berkeley Packet Filter (BPF)
 =======================================================
 
+.. _bpf_filter:
+
 Introduction
 ------------
 
diff --git a/Documentation/networking/packet_mmap.txt b/Documentation/networking/packet_mmap.txt
index 999eb41da81d..494614573c67 100644
--- a/Documentation/networking/packet_mmap.txt
+++ b/Documentation/networking/packet_mmap.txt
@@ -1051,7 +1051,7 @@ for more information on hardware timestamps.
 -------------------------------------------------------------------------------
 
 - Packet sockets work well together with Linux socket filters, thus you also
-  might want to have a look at Documentation/networking/filter.txt
+  might want to have a look at Documentation/networking/filter.rst
 
 --------------------------------------------------------------------------------
 + THANKS
diff --git a/tools/bpf/bpf_asm.c b/tools/bpf/bpf_asm.c
index c15aef097b04..5040875735db 100644
--- a/tools/bpf/bpf_asm.c
+++ b/tools/bpf/bpf_asm.c
@@ -10,7 +10,7 @@
  *
  * How to get into it:
  *
- * 1) read Documentation/networking/filter.txt
+ * 1) read Documentation/networking/filter.rst
  * 2) Run `bpf_asm [-c] <filter-prog file>` to translate into binary
  *    blob that is loadable with xt_bpf, cls_bpf et al. Note: -c will
  *    pretty print a C-like construct.
diff --git a/tools/bpf/bpf_dbg.c b/tools/bpf/bpf_dbg.c
index 61b9aa5d6415..d05d8df0ce3b 100644
--- a/tools/bpf/bpf_dbg.c
+++ b/tools/bpf/bpf_dbg.c
@@ -12,7 +12,7 @@
  * for making a verdict when multiple simple BPF programs are combined
  * into one in order to prevent parsing same headers multiple times.
  *
- * More on how to debug BPF opcodes see Documentation/networking/filter.txt
+ * More on how to debug BPF opcodes see Documentation/networking/filter.rst
  * which is the main document on BPF. Mini howto for getting started:
  *
  *  1) `./bpf_dbg` to enter the shell (shell cmds denoted with '>'):
-- 
2.17.1

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