linux-kernel - [tip:efi/core] efi/arm*: Stop printing addresses of virtual mappings

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Date:   Fri, 9 Mar 2018 01:12:17 -0800
From:   tip-bot for Ard Biesheuvel <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     hpa@...or.com, mingo@...nel.org, leif.lindholm@...aro.org,
        tglx@...utronix.de, matt@...eblueprint.co.uk,
        ard.biesheuvel@...aro.org, torvalds@...ux-foundation.org,
        linux-kernel@...r.kernel.org, peterz@...radead.org
Subject: [tip:efi/core] efi/arm*: Stop printing addresses of virtual
 mappings

Commit-ID:  1832e64162ffbbbdf7230401298550f2b624351b
Gitweb:     https://git.kernel.org/tip/1832e64162ffbbbdf7230401298550f2b624351b
Author:     Ard Biesheuvel <ard.biesheuvel@...aro.org>
AuthorDate: Thu, 8 Mar 2018 08:00:11 +0000
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Fri, 9 Mar 2018 08:58:22 +0100

efi/arm*: Stop printing addresses of virtual mappings

With the recent %p -> %px changes, we now get something like this in
the kernel boot log on ARM/arm64 EFI systems:

     Remapping and enabling EFI services.
       EFI remap 0x00000087fb830000 =>         (ptrval)
       EFI remap 0x00000087fbdb0000 =>         (ptrval)
       EFI remap 0x00000087fffc0000 =>         (ptrval)

The physical addresses of the UEFI runtime regions will also be
printed when booting with the efi=debug command line option, and the
virtual addresses can be inspected via /sys/kernel/debug/efi_page_tables
(if enabled).

So let's just remove the lines above.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@...aro.org>
Acked-by: Leif Lindholm <leif.lindholm@...aro.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Matt Fleming <matt@...eblueprint.co.uk>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: linux-efi@...r.kernel.org
Link: http://lkml.kernel.org/r/20180308080020.22828-4-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 drivers/firmware/efi/arm-runtime.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/firmware/efi/arm-runtime.c b/drivers/firmware/efi/arm-runtime.c
index 86a1ad17a32e..13561aeb7396 100644
--- a/drivers/firmware/efi/arm-runtime.c
+++ b/drivers/firmware/efi/arm-runtime.c
@@ -83,10 +83,7 @@ static bool __init efi_virtmap_init(void)
 			return false;
 
 		ret = efi_create_mapping(&efi_mm, md);
-		if  (!ret) {
-			pr_info("  EFI remap %pa => %p\n",
-				&phys, (void *)(unsigned long)md->virt_addr);
-		} else {
+		if (ret) {
 			pr_warn("  EFI remap %pa: failed to create mapping (%d)\n",
 				&phys, ret);
 			return false;