block: elevator.c: Remove now unused elevator= argument

Since the inclusion of blk-mq, elevator argument was not being
considered anymore, and it's utility died long with the legacy IO path,
now removed too.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>

Fold with doc removal patch.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

2 files changed, 0 insertions, 20 deletions

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 7ccd158b3894..8e68e8188751 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1197,12 +1197,6 @@
                         See comment before function elanfreq_setup() in
                         arch/x86/kernel/cpu/cpufreq/elanfreq.c.
 
-        elevator=       [IOSCHED]
-                        Format: { "mq-deadline" | "kyber" | "bfq" }
-                        See Documentation/block/deadline-iosched.rst,
-                        Documentation/block/kyber-iosched.rst and
-                        Documentation/block/bfq-iosched.rst for details.
-
         elfcorehdr=[size[KMG]@]offset[KMG] [IA64,PPC,SH,X86,S390]
                         Specifies physical address of start of kernel core
                         image elf header and optionally the size. Generally
diff --git a/block/elevator.c b/block/elevator.c
index 4781c4205a5d..86100de88883 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -135,20 +135,6 @@ static struct elevator_type *elevator_get(struct request_queue *q,
         return e;
 }
 
-static char chosen_elevator[ELV_NAME_MAX];
-
-static int __init elevator_setup(char *str)
-{
-        /*
-         * Be backwards-compatible with previous kernels, so users
-         * won't get the wrong elevator.
-         */
-        strncpy(chosen_elevator, str, sizeof(chosen_elevator) - 1);
-        return 1;
-}
-
-__setup("elevator=", elevator_setup);
-
 static struct kobj_type elv_ktype;
 
 struct elevator_queue *elevator_alloc(struct request_queue *q,