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From: Florian Fainelli <f.fainelli@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org,
	Satendra Singh Thakur <satendra.t@samsung.com>,
	Mauro Carvalho Chehab <mchehab@s-opensource.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Michael Krufky <mkrufky@linuxtv.org>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Shuah Khan <shuah@kernel.org>,
	Jaedon Shin <jaedon.shin@gmail.com>,
	Colin Ian King <colin.king@canonical.com>,
	Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>,
	linux-media@vger.kernel.org (open list:MEDIA INPUT
	INFRASTRUCTURE (V4L/DVB)),
	linux-fsdevel@vger.kernel.org (open list:FILESYSTEMS (VFS and
	infrastructure))
Subject: [PATCH stable 4.9 15/21] media: dvb_frontend: dtv_property_process_set() cleanups
Date: Fri,  5 Jun 2020 09:25:12 -0700	[thread overview]
Message-ID: <20200605162518.28099-16-florian.fainelli@broadcom.com> (raw)
In-Reply-To: <20200605162518.28099-1-florian.fainelli@broadcom.com>

From: Satendra Singh Thakur <satendra.t@samsung.com>

commit media: dvb_frontend: dtv_property_process_set() cleanups upstream

Since all properties in the func dtv_property_process_set() use
at most 4 bytes arguments, change the code to pass
u32 cmd and u32 data as function arguments, instead of passing a
pointer to the entire struct dtv_property *tvp.

Instead of having a generic dtv_property_dump(), added its own
properties debug logic in the dtv_property_process_set().

Signed-off-by: Satendra Singh Thakur <satendra.t@samsung.com>
Reviewed-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/media/dvb-core/dvb_frontend.c | 125 +++++++++++++++-----------
 1 file changed, 72 insertions(+), 53 deletions(-)

diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index ca4959bbb6c2..a9ae9e509205 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -1088,22 +1088,19 @@ static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = {
 	_DTV_CMD(DTV_STAT_TOTAL_BLOCK_COUNT, 0, 0),
 };
 
-static void dtv_property_dump(struct dvb_frontend *fe,
-			      bool is_set,
+static void dtv_get_property_dump(struct dvb_frontend *fe,
 			      struct dtv_property *tvp)
 {
 	int i;
 
 	if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) {
-		dev_warn(fe->dvb->device, "%s: %s tvp.cmd = 0x%08x undefined\n",
-				__func__,
-				is_set ? "SET" : "GET",
+		dev_warn(fe->dvb->device, "%s: GET tvp.cmd = 0x%08x undefined\n"
+				, __func__,
 				tvp->cmd);
 		return;
 	}
 
-	dev_dbg(fe->dvb->device, "%s: %s tvp.cmd    = 0x%08x (%s)\n", __func__,
-		is_set ? "SET" : "GET",
+	dev_dbg(fe->dvb->device, "%s: GET tvp.cmd    = 0x%08x (%s)\n", __func__,
 		tvp->cmd,
 		dtv_cmds[tvp->cmd].name);
 
@@ -1513,7 +1510,7 @@ static int dtv_property_process_get(struct dvb_frontend *fe,
 		return -EINVAL;
 	}
 
-	dtv_property_dump(fe, false, tvp);
+	dtv_get_property_dump(fe, tvp);
 
 	return 0;
 }
@@ -1740,16 +1737,36 @@ static int dvbv3_set_delivery_system(struct dvb_frontend *fe)
 	return emulate_delivery_system(fe, delsys);
 }
 
+/**
+ * dtv_property_process_set -  Sets a single DTV property
+ * @fe:		Pointer to &struct dvb_frontend
+ * @file:	Pointer to &struct file
+ * @cmd:	Digital TV command
+ * @data:	An unsigned 32-bits number
+ *
+ * This routine assigns the property
+ * value to the corresponding member of
+ * &struct dtv_frontend_properties
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
 static int dtv_property_process_set(struct dvb_frontend *fe,
-				    struct dtv_property *tvp,
-				    struct file *file)
+					struct file *file,
+					u32 cmd, u32 data)
 {
 	int r = 0;
 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 
-	dtv_property_dump(fe, true, tvp);
-
-	switch(tvp->cmd) {
+	/** Dump DTV command name and value*/
+	if (!cmd || cmd > DTV_MAX_COMMAND)
+		dev_warn(fe->dvb->device, "%s: SET cmd 0x%08x undefined\n",
+				 __func__, cmd);
+	else
+		dev_dbg(fe->dvb->device,
+				"%s: SET cmd 0x%08x (%s) to 0x%08x\n",
+				__func__, cmd, dtv_cmds[cmd].name, data);
+	switch (cmd) {
 	case DTV_CLEAR:
 		/*
 		 * Reset a cache of data specific to the frontend here. This does
@@ -1769,133 +1786,133 @@ static int dtv_property_process_set(struct dvb_frontend *fe,
 		r = dtv_set_frontend(fe);
 		break;
 	case DTV_FREQUENCY:
-		c->frequency = tvp->u.data;
+		c->frequency = data;
 		break;
 	case DTV_MODULATION:
-		c->modulation = tvp->u.data;
+		c->modulation = data;
 		break;
 	case DTV_BANDWIDTH_HZ:
-		c->bandwidth_hz = tvp->u.data;
+		c->bandwidth_hz = data;
 		break;
 	case DTV_INVERSION:
-		c->inversion = tvp->u.data;
+		c->inversion = data;
 		break;
 	case DTV_SYMBOL_RATE:
-		c->symbol_rate = tvp->u.data;
+		c->symbol_rate = data;
 		break;
 	case DTV_INNER_FEC:
-		c->fec_inner = tvp->u.data;
+		c->fec_inner = data;
 		break;
 	case DTV_PILOT:
-		c->pilot = tvp->u.data;
+		c->pilot = data;
 		break;
 	case DTV_ROLLOFF:
-		c->rolloff = tvp->u.data;
+		c->rolloff = data;
 		break;
 	case DTV_DELIVERY_SYSTEM:
-		r = dvbv5_set_delivery_system(fe, tvp->u.data);
+		r = dvbv5_set_delivery_system(fe, data);
 		break;
 	case DTV_VOLTAGE:
-		c->voltage = tvp->u.data;
+		c->voltage = data;
 		r = dvb_frontend_handle_ioctl(file, FE_SET_VOLTAGE,
 			(void *)c->voltage);
 		break;
 	case DTV_TONE:
-		c->sectone = tvp->u.data;
+		c->sectone = data;
 		r = dvb_frontend_handle_ioctl(file, FE_SET_TONE,
 			(void *)c->sectone);
 		break;
 	case DTV_CODE_RATE_HP:
-		c->code_rate_HP = tvp->u.data;
+		c->code_rate_HP = data;
 		break;
 	case DTV_CODE_RATE_LP:
-		c->code_rate_LP = tvp->u.data;
+		c->code_rate_LP = data;
 		break;
 	case DTV_GUARD_INTERVAL:
-		c->guard_interval = tvp->u.data;
+		c->guard_interval = data;
 		break;
 	case DTV_TRANSMISSION_MODE:
-		c->transmission_mode = tvp->u.data;
+		c->transmission_mode = data;
 		break;
 	case DTV_HIERARCHY:
-		c->hierarchy = tvp->u.data;
+		c->hierarchy = data;
 		break;
 	case DTV_INTERLEAVING:
-		c->interleaving = tvp->u.data;
+		c->interleaving = data;
 		break;
 
 	/* ISDB-T Support here */
 	case DTV_ISDBT_PARTIAL_RECEPTION:
-		c->isdbt_partial_reception = tvp->u.data;
+		c->isdbt_partial_reception = data;
 		break;
 	case DTV_ISDBT_SOUND_BROADCASTING:
-		c->isdbt_sb_mode = tvp->u.data;
+		c->isdbt_sb_mode = data;
 		break;
 	case DTV_ISDBT_SB_SUBCHANNEL_ID:
-		c->isdbt_sb_subchannel = tvp->u.data;
+		c->isdbt_sb_subchannel = data;
 		break;
 	case DTV_ISDBT_SB_SEGMENT_IDX:
-		c->isdbt_sb_segment_idx = tvp->u.data;
+		c->isdbt_sb_segment_idx = data;
 		break;
 	case DTV_ISDBT_SB_SEGMENT_COUNT:
-		c->isdbt_sb_segment_count = tvp->u.data;
+		c->isdbt_sb_segment_count = data;
 		break;
 	case DTV_ISDBT_LAYER_ENABLED:
-		c->isdbt_layer_enabled = tvp->u.data;
+		c->isdbt_layer_enabled = data;
 		break;
 	case DTV_ISDBT_LAYERA_FEC:
-		c->layer[0].fec = tvp->u.data;
+		c->layer[0].fec = data;
 		break;
 	case DTV_ISDBT_LAYERA_MODULATION:
-		c->layer[0].modulation = tvp->u.data;
+		c->layer[0].modulation = data;
 		break;
 	case DTV_ISDBT_LAYERA_SEGMENT_COUNT:
-		c->layer[0].segment_count = tvp->u.data;
+		c->layer[0].segment_count = data;
 		break;
 	case DTV_ISDBT_LAYERA_TIME_INTERLEAVING:
-		c->layer[0].interleaving = tvp->u.data;
+		c->layer[0].interleaving = data;
 		break;
 	case DTV_ISDBT_LAYERB_FEC:
-		c->layer[1].fec = tvp->u.data;
+		c->layer[1].fec = data;
 		break;
 	case DTV_ISDBT_LAYERB_MODULATION:
-		c->layer[1].modulation = tvp->u.data;
+		c->layer[1].modulation = data;
 		break;
 	case DTV_ISDBT_LAYERB_SEGMENT_COUNT:
-		c->layer[1].segment_count = tvp->u.data;
+		c->layer[1].segment_count = data;
 		break;
 	case DTV_ISDBT_LAYERB_TIME_INTERLEAVING:
-		c->layer[1].interleaving = tvp->u.data;
+		c->layer[1].interleaving = data;
 		break;
 	case DTV_ISDBT_LAYERC_FEC:
-		c->layer[2].fec = tvp->u.data;
+		c->layer[2].fec = data;
 		break;
 	case DTV_ISDBT_LAYERC_MODULATION:
-		c->layer[2].modulation = tvp->u.data;
+		c->layer[2].modulation = data;
 		break;
 	case DTV_ISDBT_LAYERC_SEGMENT_COUNT:
-		c->layer[2].segment_count = tvp->u.data;
+		c->layer[2].segment_count = data;
 		break;
 	case DTV_ISDBT_LAYERC_TIME_INTERLEAVING:
-		c->layer[2].interleaving = tvp->u.data;
+		c->layer[2].interleaving = data;
 		break;
 
 	/* Multistream support */
 	case DTV_STREAM_ID:
 	case DTV_DVBT2_PLP_ID_LEGACY:
-		c->stream_id = tvp->u.data;
+		c->stream_id = data;
 		break;
 
 	/* ATSC-MH */
 	case DTV_ATSCMH_PARADE_ID:
-		fe->dtv_property_cache.atscmh_parade_id = tvp->u.data;
+		fe->dtv_property_cache.atscmh_parade_id = data;
 		break;
 	case DTV_ATSCMH_RS_FRAME_ENSEMBLE:
-		fe->dtv_property_cache.atscmh_rs_frame_ensemble = tvp->u.data;
+		fe->dtv_property_cache.atscmh_rs_frame_ensemble = data;
 		break;
 
 	case DTV_LNA:
-		c->lna = tvp->u.data;
+		c->lna = data;
 		if (fe->ops.set_lna)
 			r = fe->ops.set_lna(fe);
 		if (r < 0)
@@ -2122,7 +2139,9 @@ static int dvb_frontend_handle_ioctl(struct file *file,
 			return PTR_ERR(tvp);
 
 		for (i = 0; i < tvps->num; i++) {
-			err = dtv_property_process_set(fe, tvp + i, file);
+			err = dtv_property_process_set(fe, file,
+							(tvp + i)->cmd,
+							(tvp + i)->u.data);
 			if (err < 0) {
 				kfree(tvp);
 				return err;
-- 
2.17.1


  parent reply	other threads:[~2020-06-05 16:27 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-05 16:24 [PATCH stable 4.9 00/21] Unbreak 32-bit DVB applications on 64-bit kernels Florian Fainelli
2020-06-05 16:24 ` [PATCH stable 4.9 01/21] media: dvb_frontend: ensure that inital front end status initialized Florian Fainelli
2020-06-05 16:24 ` [PATCH stable 4.9 02/21] media: dvb_frontend: initialize variable s with FE_NONE instead of 0 Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 03/21] media: dvb/frontend.h: move out a private internal structure Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 04/21] media: dvb/frontend.h: document the uAPI file Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 05/21] media: dvb_frontend: get rid of get_property() callback Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 06/21] media: stv0288: get rid of set_property boilerplate Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 07/21] media: stv6110: get rid of a srate dead code Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 08/21] media: friio-fe: get rid of set_property() Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 09/21] media: dvb_frontend: get rid of set_property() callback Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 10/21] media: dvb_frontend: cleanup dvb_frontend_ioctl_properties() Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 11/21] media: dvb_frontend: cleanup ioctl handling logic Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 12/21] media: dvb_frontend: get rid of property cache's state Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 13/21] media: dvb_frontend: better document the -EPERM condition Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 14/21] media: dvb_frontend: fix return values for FE_SET_PROPERTY Florian Fainelli
2020-06-05 16:25 ` Florian Fainelli [this message]
2020-06-05 16:25 ` [PATCH stable 4.9 16/21] media: dvb_frontend: be sure to init dvb_frontend_handle_ioctl() return code Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 17/21] media: dvb_frontend: Add unlocked_ioctl in dvb_frontend.c Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 18/21] media: dvb_frontend: Add compat_ioctl callback Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 19/21] media: dvb_frontend: Add commands implementation for compat ioct Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 20/21] media: dvb_frontend: fix wrong cast in compat_ioctl Florian Fainelli
2020-06-05 16:25 ` [PATCH stable 4.9 21/21] media: dvb_frontend: fix return error code Florian Fainelli
2020-06-12  4:45 ` [PATCH stable 4.9 00/21] Unbreak 32-bit DVB applications on 64-bit kernels Florian Fainelli
2020-06-17  4:39   ` Florian Fainelli
2020-06-17 14:21     ` Michael Ira Krufky
2020-06-17 14:22     ` Michael Ira Krufky
2020-06-23 19:13 ` Greg KH
2020-06-24 15:41   ` Florian Fainelli
2020-06-24 16:03     ` Greg KH
2020-06-25 11:30   ` Sean Young

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