Adding Xen and Jailhouse people and MLs to Cc. Folks, thread starts here:
https://lore.kernel.org/r/[email protected] On Fri, Apr 15, 2022 at 11:10:00AM -0400, Ross Philipson wrote: > There are a number of places where early_memremap is called > but the return pointer is not checked for NULL. The call > can result in a NULL being returned so the checks must > be added. > > Signed-off-by: Ross Philipson <[email protected]> > --- > arch/x86/kernel/devicetree.c | 10 ++++++++++ > arch/x86/kernel/e820.c | 5 +++++ > arch/x86/kernel/jailhouse.c | 6 ++++++ > arch/x86/kernel/mpparse.c | 23 +++++++++++++++++++++++ > arch/x86/kernel/setup.c | 5 +++++ > arch/x86/xen/enlighten_hvm.c | 2 ++ > arch/x86/xen/mmu_pv.c | 8 ++++++++ > arch/x86/xen/setup.c | 2 ++ > 8 files changed, 61 insertions(+) Ok, a couple of notes: 1. the pr_*("<prefix>:" ... ) thing is done using pr_fmt() - grep the tree for examples. 2. I think you should not panic() the machine but issue a the warning/error and let the machine die a painful death anyway. But Xen folks will know better what would be the optimal thing to do. Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette
