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authorFeng Tang <feng.tang@intel.com>2018-10-02 18:49:21 +0200
committerBorislav Petkov <bp@suse.de>2018-10-02 21:02:47 +0200
commitd2266bbfa9e3e32e3b642965088ca461bd24a94f (patch)
tree14f22dd9237f9679d6cdd7408144afebaf5764c1 /tools
parentLinux 4.19-rc6 (diff)
downloadlinux-d2266bbfa9e3e32e3b642965088ca461bd24a94f.tar.xz
linux-d2266bbfa9e3e32e3b642965088ca461bd24a94f.zip
x86/earlyprintk: Add a force option for pciserial device
The "pciserial" earlyprintk variant helps much on many modern x86 platforms, but unfortunately there are still some platforms with PCI UART devices which have the wrong PCI class code. In that case, the current class code check does not allow for them to be used for logging. Add a sub-option "force" which overrides the class code check and thus the use of such device can be enforced. [ bp: massage formulations. ] Suggested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Feng Tang <feng.tang@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "Stuart R . Anderson" <stuart.r.anderson@intel.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: David Rientjes <rientjes@google.com> Cc: Feng Tang <feng.tang@intel.com> Cc: Frederic Weisbecker <frederic@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: H Peter Anvin <hpa@linux.intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kai-Heng Feng <kai.heng.feng@canonical.com> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thymo van Beers <thymovanbeers@gmail.com> Cc: alan@linux.intel.com Cc: linux-doc@vger.kernel.org Link: http://lkml.kernel.org/r/20181002164921.25833-1-feng.tang@intel.com
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