linux-kernel - [PATCH] hpet: Fix missing '=' character in the __setup() code of hpet_mmap

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Date:   Wed, 19 Dec 2018 14:55:02 +0530
From:   Buland Singh <bsingh@...hat.com>
To:     clemens@...isch.de
Cc:     arnd@...db.de, gregkh@...uxfoundation.org,
        linux-kernel@...r.kernel.org, trivial@...nel.org,
        prarit@...hat.com, bsingh@...hat.com
Subject: [PATCH] hpet: Fix missing '=' character in the __setup() code of hpet_mmap_enable.

The kernel command parameter 'hpet_mmap' never takes effect due to missing
'=' character in the __setup() code of hpet_mmap_enable and the memory map
of the HPET registers never get expose to userspace.

Signed-off-by: Buland Singh <bsingh@...hat.com>
---
 drivers/char/hpet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 4a22b4b41aef..9bffcd37cc7b 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -377,7 +377,7 @@ static __init int hpet_mmap_enable(char *str)
 	pr_info("HPET mmap %s\n", hpet_mmap_enabled ? "enabled" : "disabled");
 	return 1;
 }
-__setup("hpet_mmap", hpet_mmap_enable);
+__setup("hpet_mmap=", hpet_mmap_enable);
 
 static int hpet_mmap(struct file *file, struct vm_area_struct *vma)
 {
-- 
2.19.1