linux-kernel - [PATCH AUTOSEL 4.14 07/12] xtensa: update *pos in cpuinfo

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Message-Id: <20200714143954.4035840-7-sashal@kernel.org>
Date:   Tue, 14 Jul 2020 10:39:49 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Max Filippov <jcmvbkbc@...il.com>, Sasha Levin <sashal@...nel.org>,
        linux-xtensa@...ux-xtensa.org
Subject: [PATCH AUTOSEL 4.14 07/12] xtensa: update *pos in cpuinfo_op.next

From: Max Filippov <jcmvbkbc@...il.com>

[ Upstream commit 0d5ab144429e8bd80889b856a44d56ab4a5cd59b ]

Increment *pos in the cpuinfo_op.next to fix the following warning
triggered by cat /proc/cpuinfo:

  seq_file: buggy .next function c_next did not update position index

Signed-off-by: Max Filippov <jcmvbkbc@...il.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/xtensa/kernel/setup.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index 92fb20777bb0e..a19c61b261422 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -711,7 +711,8 @@ c_start(struct seq_file *f, loff_t *pos)
 static void *
 c_next(struct seq_file *f, void *v, loff_t *pos)
 {
-	return NULL;
+	++*pos;
+	return c_start(f, pos);
 }
 
 static void
-- 
2.25.1