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srcu: Drop needless initialization of sdp in srcu_gp_start() 

Commit 9c7ef4c30f12 ("srcu: Make Tree SRCU able to operate without
snp_node array") initializes the local variable sdp differently depending
on the srcu's state in srcu_gp_start().  Either way, this initialization
overwrites the value used when sdp is defined.

This commit therefore drops this pointless definition-time initialization.
Although there is no functional change, compiler code generation may
be affected.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Lukas Bulwahn 2022-03-15 09:55:49 +01:00 committed by Paul E. McKenney
parent 282d8998e9
commit 586e31d59c
1 changed files with 1 additions and 1 deletions
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2
kernel/rcu/srcutree.c
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@ -620,7 +620,7 @@ EXPORT_SYMBOL_GPL(__srcu_read_unlock);
*/
static void srcu_gp_start(struct srcu_struct *ssp)
{
struct srcu_data *sdp = this_cpu_ptr(ssp->sda);
struct srcu_data *sdp;
int state;
if (smp_load_acquire(&ssp->srcu_size_state) < SRCU_SIZE_WAIT_BARRIER)