[xen master] Add basic b4 config file

[patchbot@xxxxxxx]

commit 4830ddbee3aa4198a5d4d753e7d1f3ee05c199f3
Author:     Baptiste Le Duc <baptiste.le-duc@xxxxxxxxxx>
AuthorDate: Tue Sep 15 11:06:43 2026 +0200
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue Sep 15 11:46:07 2026 +0200

    Add basic b4 config file
    
    b4[1] is a convenient tool for mail-based contribution. A config file[2]
    tracked in the tree lets the project ship a few defaults that match the Xen
    patch submission rules.
    
    This aims to help new contributors who have never used a mailing list avoid
    mistakes when sending their patch series.
    
    The tree has no scripts/checkpatch.pl or equivalent, so there is nothing
    for b4 to run per patch. Disable the needs-checking pre-flight check so a
    series can be sent without first running b4 prep --check.
    
    [1] https://pypi.org/project/b4/
    [2] https://b4.docs.kernel.org/en/latest/config.html
    
    Signed-off-by: Baptiste Le Duc <baptiste.le-duc@xxxxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 .b4-config | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/.b4-config b/.b4-config
new file mode 100644
index 0000000000..e5e2435ec4
--- /dev/null
+++ b/.b4-config
@@ -0,0 +1,10 @@
+#
+# Common b4 settings for sending patches to the Xen Project upstream.
+# https://b4.docs.kernel.org/
+#
+
+[b4]
+       send-series-to = xen-devel@xxxxxxxxxxxxxxxxxxxx
+       send-auto-to-cmd = echo
+       send-auto-cc-cmd = ./scripts/get_maintainer.pl
+       midmask = https://lore.kernel.org/xen-devel/%s
--
generated by git-patchbot for /home/xen/git/xen.git#master