On Tue, Jun 2, 2020 at 5:03 PM Johan Hovold <[email protected]> wrote: > > Commit d6e1935819db ("serial: core: Allow processing sysrq at port > unlock time") worked around a circular locking dependency by adding > helpers used to defer sysrq processing to when the port lock was > released. > > A later commit unfortunately converted these inline helpers to exported > functions despite the fact that the unlock helper was restoring irq > flags, something which needs to be done in the same function that saved > them (e.g. on SPARC).
I'm not familiar with sparc, can you elaborate a bit what is ABI / architecture lock implementation background? -- With Best Regards, Andy Shevchenko
