On Wed, 12 May 2021 11:35:02 -0400 Chuck Lever <chuck.lever@xxxxxxxxxx> wrote: > Since commit 9a6944fee68e ("tracing: Add a verifier to check string > pointers for trace events"), which was merged in v5.13-rc1, > TP_printk() no longer tacitly supports the "%.*s" format specifier. Hmm, this looks like a bug. I should allow the %.*s notation. I probably should fix that. -- Steve