arm64: mm: fix show_pte KERN_CONT fallout
authorMark Rutland <mark.rutland@arm.com>
Tue, 3 Jan 2017 14:27:26 +0000 (14:27 +0000)
committerCatalin Marinas <catalin.marinas@arm.com>
Wed, 4 Jan 2017 16:25:50 +0000 (16:25 +0000)
Recent changes made KERN_CONT mandatory for continued lines. In the
absence of KERN_CONT, a newline may be implicit inserted by the core
printk code.

In show_pte, we (erroneously) use printk without KERN_CONT for continued
prints, resulting in output being split across a number of lines, and
not matching the intended output, e.g.

[ff000000000000] *pgd=00000009f511b003
, *pud=00000009f4a80003
, *pmd=0000000000000000

Fix this by using pr_cont() for all the continuations.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/mm/fault.c

index a78a5c401806c80ee63818c8d353f3ca44bf58d3..156169c6981ba09ef815308ae847d84ccc02e4f4 100644 (file)
@@ -88,21 +88,21 @@ void show_pte(struct mm_struct *mm, unsigned long addr)
                        break;
 
                pud = pud_offset(pgd, addr);
-               printk(", *pud=%016llx", pud_val(*pud));
+               pr_cont(", *pud=%016llx", pud_val(*pud));
                if (pud_none(*pud) || pud_bad(*pud))
                        break;
 
                pmd = pmd_offset(pud, addr);
-               printk(", *pmd=%016llx", pmd_val(*pmd));
+               pr_cont(", *pmd=%016llx", pmd_val(*pmd));
                if (pmd_none(*pmd) || pmd_bad(*pmd))
                        break;
 
                pte = pte_offset_map(pmd, addr);
-               printk(", *pte=%016llx", pte_val(*pte));
+               pr_cont(", *pte=%016llx", pte_val(*pte));
                pte_unmap(pte);
        } while(0);
 
-       printk("\n");
+       pr_cont("\n");
 }
 
 #ifdef CONFIG_ARM64_HW_AFDBM