Messages in this thread Patch in this message | | | Date | Tue, 26 Jun 2018 03:25:01 -0700 | From | tip-bot for Dmitry Vyukov <> | Subject | [tip:x86/urgent] x86/mm: Get rid of KERN_CONT in show_fault_oops() |
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Commit-ID: 4188f063e3694ccbf2a2044cf17cc325f91e458f Gitweb: https://git.kernel.org/tip/4188f063e3694ccbf2a2044cf17cc325f91e458f Author: Dmitry Vyukov <dvyukov@google.com> AuthorDate: Mon, 25 Jun 2018 14:38:08 +0200 Committer: Ingo Molnar <mingo@kernel.org> CommitDate: Tue, 26 Jun 2018 09:00:25 +0200
x86/mm: Get rid of KERN_CONT in show_fault_oops()
KERN_CONT leads to split lines in kernel output and complicates useful changes to printk like printing context before each line.
Only acceptable use of continuations is basically boot-time testing.
Get rid of it.
Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20180625123808.227417-1-dvyukov@gmail.com [ Removed unnecessary parentheses and prettified the printk statement. ] Signed-off-by: Ingo Molnar <mingo@kernel.org> --- arch/x86/mm/fault.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 9a84a0d08727..ee85766e6329 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -671,13 +671,9 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code, printk(smep_warning, from_kuid(&init_user_ns, current_uid())); } - printk(KERN_ALERT "BUG: unable to handle kernel "); - if (address < PAGE_SIZE) - printk(KERN_CONT "NULL pointer dereference"); - else - printk(KERN_CONT "paging request"); - - printk(KERN_CONT " at %px\n", (void *) address); + pr_alert("BUG: unable to handle kernel %s at %px\n", + address < PAGE_SIZE ? "NULL pointer dereference" : "paging request", + (void *)address); dump_pagetable(address); }
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