[PATCH] arm64: fix CONFIG_DEBUG_WX address reporting

[Timur Tabi]

On 12/14/2017 01:02 PM, Laura Abbott wrote:
> 
> While we're fixing this up, do you want to drop the %p from the
> "Found insecure W+X" message from above since pointer hashing
> renders it kind of pointless or switch it to %px?

Switching to %px gives me:

arm64/mm: Found insecure W+X mapping at address 
ffff2b1b4e512000/0xffff2b1b4e512000

Looks the same as before.

However, when I try to dump the contents of memory at that address via 
print_hex_dump(), I get an "Unable to handle kernel paging request" oops.

[   11.236091] Unable to handle kernel paging request at virtual address 
ffff2b1b4e512000
[   11.243985] pgd = ffff2b1b55a0d000
[   11.247371] [ffff2b1b4e512000] *pgd=00000007ffffe003, 
*pud=00000007ffffd003, *pmd=000000079972a003, *pte=0000000000000000


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