x86/realmode: Don't leak the trampoline kernel address

teknoraver · suryasaimadhu · commit b929a500d684 · 2019-03-27T14:22:08.000+01:00
Since commit ad67b74 ("printk: hash addresses printed with %p") at boot "____ptrval____" is printed instead of the trampoline addresses: Base memory trampoline at [(____ptrval____)] 99000 size 24576 Remove the print as we don't want to leak kernel addresses and this statement is not needed anymore. Fixes: ad67b74 ("printk: hash addresses printed with %p") Signed-off-by: Matteo Croce <mcroce@redhat.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/20190326203046.20787-1-mcroce@redhat.com
diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
@@ -20,8 +20,6 @@ void __init set_real_mode_mem(phys_addr_t mem, size_t size)
 	void *base = __va(mem);
 
 	real_mode_header = (struct real_mode_header *) base;
-	printk(KERN_DEBUG "Base memory trampoline at [%p] %llx size %zu\n",
-	       base, (unsigned long long)mem, size);
 }
 
 void __init reserve_real_mode(void)

Original file line number	Diff line number	Diff line change
`@@ -20,8 +20,6 @@ void __init set_real_mode_mem(phys_addr_t mem, size_t size)`
`20`	`20`	`void *base = __va(mem);`
`21`	`21`
`22`	`22`	`real_mode_header = (struct real_mode_header *) base;`
`23`		`- printk(KERN_DEBUG "Base memory trampoline at [%p] %llx size %zu\n",`
`24`		`- base, (unsigned long long)mem, size);`
`25`	`23`	`}`
`26`	`24`
`27`	`25`	`void __init reserve_real_mode(void)`