From d4a3fa6652e3f617bd4cfe3fef99f25a84ffa2ca Mon Sep 17 00:00:00 2001 From: "Daniel W. S. Almeida" Date: Thu, 3 Sep 2020 15:13:09 +0200 Subject: [PATCH] media: dvb-frontends: lgdt3306a.c: remove dead code Fix the following coccinelle report: drivers/media/dvb-frontends/lgdt3306a.c:718:5-8: Unneeded variable: "ret". Return "0" on line 744 Code was enclosed with #if 0 and thus this variable was not needed. Remove that function altogether. The lgdt3306a_spectral_inversion function was dropped completely since the function doesn't do anything. A comment was left at its calling site to let others know that spectral_inversion defaults already set for VSB and QAM Found using - Coccinelle (http://coccinelle.lip6.fr) Link: https://lore.kernel.org/linux-media/20200903131311.442255-1-dwlsalmeida@gmail.com Signed-off-by: Daniel W. S. Almeida Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb-frontends/lgdt3306a.c | 37 ++----------------------- 1 file changed, 2 insertions(+), 35 deletions(-) diff --git a/drivers/media/dvb-frontends/lgdt3306a.c b/drivers/media/dvb-frontends/lgdt3306a.c index 722576f1732aa..22d4844876950 100644 --- a/drivers/media/dvb-frontends/lgdt3306a.c +++ b/drivers/media/dvb-frontends/lgdt3306a.c @@ -711,39 +711,6 @@ static int lgdt3306a_set_inversion_auto(struct lgdt3306a_state *state, return ret; } -static int lgdt3306a_spectral_inversion(struct lgdt3306a_state *state, - struct dtv_frontend_properties *p, - int inversion) -{ - int ret = 0; - - dbg_info("(%d)\n", inversion); -#if 0 - /* - * FGR - spectral_inversion defaults already set for VSB and QAM; - * can enable later if desired - */ - - ret = lgdt3306a_set_inversion(state, inversion); - - switch (p->modulation) { - case VSB_8: - /* Manual only for VSB */ - ret = lgdt3306a_set_inversion_auto(state, 0); - break; - case QAM_64: - case QAM_256: - case QAM_AUTO: - /* Auto ok for QAM */ - ret = lgdt3306a_set_inversion_auto(state, 1); - break; - default: - ret = -EINVAL; - } -#endif - return ret; -} - static int lgdt3306a_set_if(struct lgdt3306a_state *state, struct dtv_frontend_properties *p) { @@ -1048,8 +1015,8 @@ static int lgdt3306a_set_parameters(struct dvb_frontend *fe) if (lg_chkerr(ret)) goto fail; - ret = lgdt3306a_spectral_inversion(state, p, - state->cfg->spectral_inversion ? 1 : 0); + /* spectral_inversion defaults already set for VSB and QAM */ + if (lg_chkerr(ret)) goto fail; -- 2.30.2