| Message ID | 20231023133502.666559-1-colin.i.king@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [next] clk: sunxi-ng: nkm: remove redundant initialization of tmp_parent | expand |
On Mon, 23 Oct 2023 14:35:02 +0100 Colin Ian King <colin.i.king@gmail.com> wrote: Hi, > Variable tmp_parent is being ininitialized with a value that is never > read, the initialization is redundant and can be removed. Move the > initialization and move the variable to the inner loop scope. > > Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Yes, that seems to be correct: Reviewed-by: Andre Przywara <andre.przywara@arm.com> Cheers, Andre > --- > drivers/clk/sunxi-ng/ccu_nkm.c | 5 ++--- > 1 file changed, 2 insertions(+), 3 deletions(-) > > diff --git a/drivers/clk/sunxi-ng/ccu_nkm.c b/drivers/clk/sunxi-ng/ccu_nkm.c > index eed64547ad42..853f84398e2b 100644 > --- a/drivers/clk/sunxi-ng/ccu_nkm.c > +++ b/drivers/clk/sunxi-ng/ccu_nkm.c > @@ -21,17 +21,16 @@ static unsigned long ccu_nkm_find_best_with_parent_adj(struct ccu_common *common > unsigned long *parent, unsigned long rate, > struct _ccu_nkm *nkm) > { > - unsigned long best_rate = 0, best_parent_rate = *parent, tmp_parent = *parent; > + unsigned long best_rate = 0, best_parent_rate = *parent; > unsigned long best_n = 0, best_k = 0, best_m = 0; > unsigned long _n, _k, _m; > > for (_k = nkm->min_k; _k <= nkm->max_k; _k++) { > for (_n = nkm->min_n; _n <= nkm->max_n; _n++) { > for (_m = nkm->min_m; _m <= nkm->max_m; _m++) { > - unsigned long tmp_rate; > + unsigned long tmp_rate, tmp_parent; > > tmp_parent = clk_hw_round_rate(parent_hw, rate * _m / (_n * _k)); > - > tmp_rate = tmp_parent * _n * _k / _m; > > if (ccu_is_better_rate(common, rate, tmp_rate, best_rate) ||
Dne ponedeljek, 23. oktober 2023 ob 15:35:02 CEST je Colin Ian King napisal(a): > Variable tmp_parent is being ininitialized with a value that is never > read, the initialization is redundant and can be removed. Move the > initialization and move the variable to the inner loop scope. > > Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com> Best regards, Jernej > --- > drivers/clk/sunxi-ng/ccu_nkm.c | 5 ++--- > 1 file changed, 2 insertions(+), 3 deletions(-) > > diff --git a/drivers/clk/sunxi-ng/ccu_nkm.c b/drivers/clk/sunxi-ng/ccu_nkm.c > index eed64547ad42..853f84398e2b 100644 > --- a/drivers/clk/sunxi-ng/ccu_nkm.c > +++ b/drivers/clk/sunxi-ng/ccu_nkm.c > @@ -21,17 +21,16 @@ static unsigned long ccu_nkm_find_best_with_parent_adj(struct ccu_common *common > unsigned long *parent, unsigned long rate, > struct _ccu_nkm *nkm) > { > - unsigned long best_rate = 0, best_parent_rate = *parent, tmp_parent = *parent; > + unsigned long best_rate = 0, best_parent_rate = *parent; > unsigned long best_n = 0, best_k = 0, best_m = 0; > unsigned long _n, _k, _m; > > for (_k = nkm->min_k; _k <= nkm->max_k; _k++) { > for (_n = nkm->min_n; _n <= nkm->max_n; _n++) { > for (_m = nkm->min_m; _m <= nkm->max_m; _m++) { > - unsigned long tmp_rate; > + unsigned long tmp_rate, tmp_parent; > > tmp_parent = clk_hw_round_rate(parent_hw, rate * _m / (_n * _k)); > - > tmp_rate = tmp_parent * _n * _k / _m; > > if (ccu_is_better_rate(common, rate, tmp_rate, best_rate) || >
Dne ponedeljek, 23. oktober 2023 ob 15:35:02 CET je Colin Ian King napisal(a): > Variable tmp_parent is being ininitialized with a value that is never > read, the initialization is redundant and can be removed. Move the > initialization and move the variable to the inner loop scope. > > Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Applied, thanks! Best regards, Jernej > --- > drivers/clk/sunxi-ng/ccu_nkm.c | 5 ++--- > 1 file changed, 2 insertions(+), 3 deletions(-) > > diff --git a/drivers/clk/sunxi-ng/ccu_nkm.c b/drivers/clk/sunxi-ng/ccu_nkm.c > index eed64547ad42..853f84398e2b 100644 > --- a/drivers/clk/sunxi-ng/ccu_nkm.c > +++ b/drivers/clk/sunxi-ng/ccu_nkm.c > @@ -21,17 +21,16 @@ static unsigned long ccu_nkm_find_best_with_parent_adj(struct ccu_common *common > unsigned long *parent, unsigned long rate, > struct _ccu_nkm *nkm) > { > - unsigned long best_rate = 0, best_parent_rate = *parent, tmp_parent = *parent; > + unsigned long best_rate = 0, best_parent_rate = *parent; > unsigned long best_n = 0, best_k = 0, best_m = 0; > unsigned long _n, _k, _m; > > for (_k = nkm->min_k; _k <= nkm->max_k; _k++) { > for (_n = nkm->min_n; _n <= nkm->max_n; _n++) { > for (_m = nkm->min_m; _m <= nkm->max_m; _m++) { > - unsigned long tmp_rate; > + unsigned long tmp_rate, tmp_parent; > > tmp_parent = clk_hw_round_rate(parent_hw, rate * _m / (_n * _k)); > - > tmp_rate = tmp_parent * _n * _k / _m; > > if (ccu_is_better_rate(common, rate, tmp_rate, best_rate) || >
diff --git a/drivers/clk/sunxi-ng/ccu_nkm.c b/drivers/clk/sunxi-ng/ccu_nkm.c index eed64547ad42..853f84398e2b 100644 --- a/drivers/clk/sunxi-ng/ccu_nkm.c +++ b/drivers/clk/sunxi-ng/ccu_nkm.c @@ -21,17 +21,16 @@ static unsigned long ccu_nkm_find_best_with_parent_adj(struct ccu_common *common unsigned long *parent, unsigned long rate, struct _ccu_nkm *nkm) { - unsigned long best_rate = 0, best_parent_rate = *parent, tmp_parent = *parent; + unsigned long best_rate = 0, best_parent_rate = *parent; unsigned long best_n = 0, best_k = 0, best_m = 0; unsigned long _n, _k, _m; for (_k = nkm->min_k; _k <= nkm->max_k; _k++) { for (_n = nkm->min_n; _n <= nkm->max_n; _n++) { for (_m = nkm->min_m; _m <= nkm->max_m; _m++) { - unsigned long tmp_rate; + unsigned long tmp_rate, tmp_parent; tmp_parent = clk_hw_round_rate(parent_hw, rate * _m / (_n * _k)); - tmp_rate = tmp_parent * _n * _k / _m; if (ccu_is_better_rate(common, rate, tmp_rate, best_rate) ||
Variable tmp_parent is being ininitialized with a value that is never read, the initialization is redundant and can be removed. Move the initialization and move the variable to the inner loop scope. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> --- drivers/clk/sunxi-ng/ccu_nkm.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)