linux-kernel - [tip: x86/kaslr] x86/kaslr: Remove bogus warning and unnecessary goto

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Message-ID: <159675714282.3192.931391555464136826.tip-bot2@tip-bot2>
Date:   Thu, 06 Aug 2020 23:39:02 -0000
From:   "tip-bot2 for Arvind Sankar" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Arvind Sankar <nivedita@...m.mit.edu>,
        Ingo Molnar <mingo@...nel.org>,
        Kees Cook <keescook@...omium.org>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: x86/kaslr] x86/kaslr: Remove bogus warning and unnecessary goto

The following commit has been merged into the x86/kaslr branch of tip:

Commit-ID:     e2ee6173162b28053cb76b25887a0be9331c9e21
Gitweb:        https://git.kernel.org/tip/e2ee6173162b28053cb76b25887a0be9331c9e21
Author:        Arvind Sankar <nivedita@...m.mit.edu>
AuthorDate:    Mon, 27 Jul 2020 19:07:55 -04:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Fri, 31 Jul 2020 11:08:07 +02:00

x86/kaslr: Remove bogus warning and unnecessary goto

Drop the warning on seeing "--" in handle_mem_options(). This will trigger
whenever one of the memory options is present in the command line
together with "--", but there's no problem if that is the case.

Replace goto with break.

Signed-off-by: Arvind Sankar <nivedita@...m.mit.edu>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Reviewed-by: Kees Cook <keescook@...omium.org>
Link: https://lore.kernel.org/r/20200727230801.3468620-3-nivedita@alum.mit.edu
---
 arch/x86/boot/compressed/kaslr.c |  9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c
index e0f69f3..c31f3a5 100644
--- a/arch/x86/boot/compressed/kaslr.c
+++ b/arch/x86/boot/compressed/kaslr.c
@@ -295,10 +295,8 @@ static void handle_mem_options(void)
 	while (*args) {
 		args = next_arg(args, &param, &val);
 		/* Stop at -- */
-		if (!val && strcmp(param, "--") == 0) {
-			warn("Only '--' specified in cmdline");
-			goto out;
-		}
+		if (!val && strcmp(param, "--") == 0)
+			break;
 
 		if (!strcmp(param, "memmap")) {
 			mem_avoid_memmap(PARSE_MEMMAP, val);
@@ -311,7 +309,7 @@ static void handle_mem_options(void)
 				continue;
 			mem_size = memparse(p, &p);
 			if (mem_size == 0)
-				goto out;
+				break;
 
 			mem_limit = mem_size;
 		} else if (!strcmp(param, "efi_fake_mem")) {
@@ -319,7 +317,6 @@ static void handle_mem_options(void)
 		}
 	}
 
-out:
 	free(tmp_cmdline);
 	return;
 }