Anna Nyiri wrote:

What is the current maximum allowed line length? Because the
checkpatch script permits up to 100 characters for max_line_length.
But I received warning on patchwork.kernel.org site:

WARNING: line length of 86 exceeds 80 columns
#64: FILE: tools/testing/selftests/net/cmsg_sender.c:121:
+ while ((o = getopt(argc, argv, "46sS:p:P:m:M:n:d:tf:F:c:C:l:L:H:Q:")) != -1) {

You can ignore that in cases where exceeding it makes sense, as it
does here. Up to 100 chars IIRC.

Btw, also please no top posting in kernel mailing lists.