Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932629AbbFIWIH (ORCPT ); Tue, 9 Jun 2015 18:08:07 -0400 Received: from lists.s-osg.org ([54.187.51.154]:39712 "EHLO lists.s-osg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752557AbbFIWH4 (ORCPT ); Tue, 9 Jun 2015 18:07:56 -0400 Date: Tue, 9 Jun 2015 19:07:49 -0300 From: Mauro Carvalho Chehab To: Joe Perches Cc: Malcolm Priestley , linux-media@vger.kernel.org, linux-kernel Subject: Re: [PATCH] [media] lmedm04: Neaten logging Message-ID: <20150609190749.56a1c6dd@recife.lan> In-Reply-To: <1432542547.2846.55.camel@perches.com> References: <1432542547.2846.55.camel@perches.com> Organization: Samsung X-Mailer: Claws Mail 3.11.1 (GTK+ 2.24.28; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 13950 Lines: 394 Hi Joe, Em Mon, 25 May 2015 01:29:07 -0700 Joe Perches escreveu: > Use a more current logging style. > > o Use pr_fmt > o Add missing newlines to formats > o Remove used-once lme_debug macro incorporating it into dbg_info > o Remove unnecessary allocation error messages > o Remove unnecessary semicolons from #defines > o Remove info macro and convert uses to pr_info > o Fix spelling of snippet > o Use %phN extension There are a few checkpatch warnings: WARNING: line over 80 characters #145: FILE: drivers/media/usb/dvb-usb-v2/lmedm04.c:337: + debug_data_snippet(5, "INT Remote data snippet in", ibuf); ERROR: space prohibited before that ',' (ctx:WxW) #190: FILE: drivers/media/usb/dvb-usb-v2/lmedm04.c:452: + pr_info("Firmware Status: %x (%x)\n", ret , data[2]); ^ ERROR: space prohibited before that ',' (ctx:WxW) #251: FILE: drivers/media/usb/dvb-usb-v2/lmedm04.c:630: + pr_info("FRM Firmware Download Failed (%04x)\n" , ret); ^ and please see below: > > Signed-off-by: Joe Perches > --- > drivers/media/usb/dvb-usb-v2/lmedm04.c | 105 +++++++++++++++------------------ > 1 file changed, 49 insertions(+), 56 deletions(-) > > diff --git a/drivers/media/usb/dvb-usb-v2/lmedm04.c b/drivers/media/usb/dvb-usb-v2/lmedm04.c > index 5de6f7c..7e8e58b 100644 > --- a/drivers/media/usb/dvb-usb-v2/lmedm04.c > +++ b/drivers/media/usb/dvb-usb-v2/lmedm04.c > @@ -67,6 +67,8 @@ > * M88RS2000 suffers from loss of lock. > */ > #define DVB_USB_LOG_PREFIX "LME2510(C)" > +#define pr_fmt(fmt) DVB_USB_LOG_PREFIX ": " fmt > + > #include > #include > #include > @@ -84,25 +86,22 @@ > #include "ts2020.h" > > > -#define LME2510_C_S7395 "dvb-usb-lme2510c-s7395.fw"; > -#define LME2510_C_LG "dvb-usb-lme2510c-lg.fw"; > -#define LME2510_C_S0194 "dvb-usb-lme2510c-s0194.fw"; > -#define LME2510_C_RS2000 "dvb-usb-lme2510c-rs2000.fw"; > -#define LME2510_LG "dvb-usb-lme2510-lg.fw"; > -#define LME2510_S0194 "dvb-usb-lme2510-s0194.fw"; > +#define LME2510_C_S7395 "dvb-usb-lme2510c-s7395.fw" > +#define LME2510_C_LG "dvb-usb-lme2510c-lg.fw" > +#define LME2510_C_S0194 "dvb-usb-lme2510c-s0194.fw" > +#define LME2510_C_RS2000 "dvb-usb-lme2510c-rs2000.fw" > +#define LME2510_LG "dvb-usb-lme2510-lg.fw" > +#define LME2510_S0194 "dvb-usb-lme2510-s0194.fw" > > /* debug */ > static int dvb_usb_lme2510_debug; > -#define lme_debug(var, level, args...) do { \ > - if ((var >= level)) \ > - pr_debug(DVB_USB_LOG_PREFIX": " args); \ > +#define deb_info(level, fmt, ...) \ > +do { \ > + if (dvb_usb_lme2510_debug >= level) \ > + pr_debug(fmt, ##__VA_ARGS__); \ > } while (0) The usage of both a debug level and pr_debug() is not nice, as, if CONFIG_DYNAMIC_DEBUG is enabled (with is the case on most distros), one needing to debug would need to both pass a debug level AND to enable the debug line via sysfs, with is not nice. We might of course remove debug levels as a hole and just use pr_debug(), but the end result is generally worse (didn't chec the specifics on this file). So, the better here would be to use printk like: #define deb_info(level, fmt, ...)\ do { if (dvb_usb_lme2510_debug >= level)\ printk(KERN_DEBUG pr_fmt(fmt), ## arg);\ } while (0) Ok, this issue were already present on the old code, but IMHO the best is to either use the above definition of deb_info() or to just call pr_debug() and get rid of dvb_usb_lme2510_debug. Regards, Mauro > -#define deb_info(level, args...) lme_debug(dvb_usb_lme2510_debug, level, args) > -#define debug_data_snipet(level, name, p) \ > - deb_info(level, name" (%02x%02x%02x%02x%02x%02x%02x%02x)", \ > - *p, *(p+1), *(p+2), *(p+3), *(p+4), \ > - *(p+5), *(p+6), *(p+7)); > -#define info(args...) pr_info(DVB_USB_LOG_PREFIX": "args) > +#define debug_data_snippet(level, name, p) \ > + deb_info(level, name " (%*phN)\n", 8, p) > > module_param_named(debug, dvb_usb_lme2510_debug, int, 0644); > MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able))."); > @@ -182,10 +181,8 @@ static int lme2510_usb_talk(struct dvb_usb_device *d, > > if (st->usb_buffer == NULL) { > st->usb_buffer = kmalloc(64, GFP_KERNEL); > - if (st->usb_buffer == NULL) { > - info("MEM Error no memory"); > + if (st->usb_buffer == NULL) > return -ENOMEM; > - } > } > buff = st->usb_buffer; > > @@ -234,7 +231,7 @@ static int lme2510_enable_pid(struct dvb_usb_device *d, u8 index, u16 pid_out) > u8 pid_no = index * 2; > u8 pid_len = pid_no + 2; > int ret = 0; > - deb_info(1, "PID Setting Pid %04x", pid_out); > + deb_info(1, "PID Setting Pid %04x\n", pid_out); > > if (st->pid_size == 0) > ret |= lme2510_stream_restart(d); > @@ -275,7 +272,7 @@ static void lme2510_int_response(struct urb *lme_urb) > case -ESHUTDOWN: > return; > default: > - info("Error %x", lme_urb->status); > + pr_info("Error %x\n", lme_urb->status); > break; > } > > @@ -286,17 +283,17 @@ static void lme2510_int_response(struct urb *lme_urb) > > for (i = 0; i < offset; ++i) { > ibuf = (u8 *)&rbuf[i*8]; > - deb_info(5, "INT O/S C =%02x C/O=%02x Type =%02x%02x", > - offset, i, ibuf[0], ibuf[1]); > + deb_info(5, "INT O/S C =%02x C/O=%02x Type =%02x%02x\n", > + offset, i, ibuf[0], ibuf[1]); > > switch (ibuf[0]) { > case 0xaa: > - debug_data_snipet(1, "INT Remote data snipet", ibuf); > + debug_data_snippet(1, "INT Remote data snippet", ibuf); > if ((ibuf[4] + ibuf[5]) == 0xff) { > key = RC_SCANCODE_NECX((ibuf[2] ^ 0xff) << 8 | > (ibuf[3] > 0) ? (ibuf[3] ^ 0xff) : 0, > ibuf[5]); > - deb_info(1, "INT Key =%08x", key); > + deb_info(1, "INT Key =%08x\n", key); > if (adap_to_d(adap)->rc_dev != NULL) > rc_keydown(adap_to_d(adap)->rc_dev, > RC_TYPE_NEC, key, 0); > @@ -337,13 +334,13 @@ static void lme2510_int_response(struct urb *lme_urb) > if (!signal_lock) > st->lock_status &= ~FE_HAS_LOCK; > > - debug_data_snipet(5, "INT Remote data snipet in", ibuf); > + debug_data_snippet(5, "INT Remote data snippet in", ibuf); > break; > case 0xcc: > - debug_data_snipet(1, "INT Control data snipet", ibuf); > + debug_data_snippet(1, "INT Control data snippet", ibuf); > break; > default: > - debug_data_snipet(1, "INT Unknown data snipet", ibuf); > + debug_data_snippet(1, "INT Unknown data snippet", ibuf); > break; > } > } > @@ -391,7 +388,7 @@ static int lme2510_int_read(struct dvb_usb_adapter *adap) > lme_int->lme_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; > > usb_submit_urb(lme_int->lme_urb, GFP_ATOMIC); > - info("INT Interrupt Service Started"); > + pr_info("INT Interrupt Service Started\n"); > > return 0; > } > @@ -404,7 +401,7 @@ static int lme2510_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff) > static u8 rbuf[1]; > int ret = 0; > > - deb_info(1, "PID Clearing Filter"); > + deb_info(1, "PID Clearing Filter\n"); > > mutex_lock(&d->i2c_mutex); > > @@ -428,8 +425,7 @@ static int lme2510_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid, > struct dvb_usb_device *d = adap_to_d(adap); > int ret = 0; > > - deb_info(3, "%s PID=%04x Index=%04x onoff=%02x", __func__, > - pid, index, onoff); > + deb_info(3, "PID=%04x Index=%04x onoff=%02x\n", pid, index, onoff); > > if (onoff) { > mutex_lock(&d->i2c_mutex); > @@ -453,7 +449,7 @@ static int lme2510_return_status(struct dvb_usb_device *d) > > ret |= usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), > 0x06, 0x80, 0x0302, 0x00, data, 0x0006, 200); > - info("Firmware Status: %x (%x)", ret , data[2]); > + pr_info("Firmware Status: %x (%x)\n", ret , data[2]); > > ret = (ret < 0) ? -ENODEV : data[2]; > kfree(data); > @@ -516,7 +512,7 @@ static int lme2510_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], > } > > if (lme2510_msg(d, obuf, len, ibuf, 64) < 0) { > - deb_info(1, "i2c transfer failed."); > + deb_info(1, "i2c transfer failed\n"); > mutex_unlock(&d->i2c_mutex); > return -EAGAIN; > } > @@ -554,13 +550,13 @@ static int lme2510_streaming_ctrl(struct dvb_frontend *fe, int onoff) > static u8 rbuf[1]; > int ret = 0, rlen = sizeof(rbuf); > > - deb_info(1, "STM (%02x)", onoff); > + deb_info(1, "STM (%02x)\n", onoff); > > /* Streaming is started by FE_HAS_LOCK */ > if (onoff == 1) > st->stream_on = 1; > else { > - deb_info(1, "STM Steam Off"); > + deb_info(1, "STM Stream Off\n"); > /* mutex is here only to avoid collision with I2C */ > mutex_lock(&d->i2c_mutex); > > @@ -596,13 +592,10 @@ static int lme2510_download_firmware(struct dvb_usb_device *d, > len_in = 1; > > data = kzalloc(128, GFP_KERNEL); > - if (!data) { > - info("FRM Could not start Firmware Download"\ > - "(Buffer allocation failed)"); > + if (!data) > return -ENOMEM; > - } > > - info("FRM Starting Firmware Download"); > + pr_info("FRM Starting Firmware Download\n"); > > for (i = 1; i < 3; i++) { > start = (i == 1) ? 0 : 512; > @@ -620,8 +613,8 @@ static int lme2510_download_firmware(struct dvb_usb_device *d, > memcpy(&data[2], fw_data, dlen+1); > wlen = (u8) dlen + 4; > data[wlen-1] = check_sum(fw_data, dlen+1); > - deb_info(1, "Data S=%02x:E=%02x CS= %02x", data[3], > - data[dlen+2], data[dlen+3]); > + deb_info(1, "Data S=%02x:E=%02x CS= %02x\n", > + data[3], data[dlen+2], data[dlen+3]); > lme2510_usb_talk(d, data, wlen, data, len_in); > ret |= (data[0] == 0x88) ? 0 : -1; > } > @@ -634,9 +627,9 @@ static int lme2510_download_firmware(struct dvb_usb_device *d, > msleep(400); > > if (ret < 0) > - info("FRM Firmware Download Failed (%04x)" , ret); > + pr_info("FRM Firmware Download Failed (%04x)\n" , ret); > else > - info("FRM Firmware Download Completed - Resetting Device"); > + pr_info("FRM Firmware Download Completed - Resetting Device\n"); > > kfree(data); > return RECONNECTS_USB; > @@ -646,7 +639,7 @@ static void lme_coldreset(struct dvb_usb_device *d) > { > u8 data[1] = {0}; > data[0] = 0x0a; > - info("FRM Firmware Cold Reset"); > + pr_info("FRM Firmware Cold Reset\n"); > > lme2510_usb_talk(d, data, sizeof(data), data, sizeof(data)); > > @@ -738,7 +731,7 @@ static const char *lme_firmware_switch(struct dvb_usb_device *d, int cold) > > if (cold) { > dvb_usb_lme2510_firmware = st->dvb_usb_lme2510_firmware; > - info("FRM Changing to %s firmware", fw_lme); > + pr_info("FRM Changing to %s firmware\n", fw_lme); > lme_coldreset(d); > return NULL; > } > @@ -751,7 +744,7 @@ static int lme2510_kill_urb(struct usb_data_stream *stream) > int i; > > for (i = 0; i < stream->urbs_submitted; i++) { > - deb_info(3, "killing URB no. %d.", i); > + deb_info(3, "killing URB no. %d\n", i); > /* stop the URB */ > usb_kill_urb(stream->urb_list[i]); > } > @@ -978,7 +971,7 @@ static int dm04_lme2510_frontend_attach(struct dvb_usb_adapter *adap) > adap->fe[0] = dvb_attach(tda10086_attach, > &tda10086_config, &d->i2c_adap); > if (adap->fe[0]) { > - info("TUN Found Frontend TDA10086"); > + pr_info("TUN Found Frontend TDA10086\n"); > st->i2c_tuner_gate_w = 4; > st->i2c_tuner_gate_r = 4; > st->i2c_tuner_addr = 0x60; > @@ -994,7 +987,7 @@ static int dm04_lme2510_frontend_attach(struct dvb_usb_adapter *adap) > adap->fe[0] = dvb_attach(stv0299_attach, > &sharp_z0194_config, &d->i2c_adap); > if (adap->fe[0]) { > - info("FE Found Stv0299"); > + pr_info("FE Found Stv0299\n"); > st->i2c_tuner_gate_w = 4; > st->i2c_tuner_gate_r = 5; > st->i2c_tuner_addr = 0x60; > @@ -1011,7 +1004,7 @@ static int dm04_lme2510_frontend_attach(struct dvb_usb_adapter *adap) > &d->i2c_adap); > > if (adap->fe[0]) { > - info("FE Found Stv0288"); > + pr_info("FE Found Stv0288\n"); > st->i2c_tuner_gate_w = 4; > st->i2c_tuner_gate_r = 5; > st->i2c_tuner_addr = 0x60; > @@ -1028,7 +1021,7 @@ static int dm04_lme2510_frontend_attach(struct dvb_usb_adapter *adap) > &m88rs2000_config, &d->i2c_adap); > > if (adap->fe[0]) { > - info("FE Found M88RS2000"); > + pr_info("FE Found M88RS2000\n"); > dvb_attach(ts2020_attach, adap->fe[0], &ts2020_config, > &d->i2c_adap); > st->i2c_tuner_gate_w = 5; > @@ -1042,7 +1035,7 @@ static int dm04_lme2510_frontend_attach(struct dvb_usb_adapter *adap) > } > > if (adap->fe[0] == NULL) { > - info("DM04/QQBOX Not Powered up or not Supported"); > + pr_info("DM04/QQBOX Not Powered up or not Supported\n"); > return -ENODEV; > } > > @@ -1103,9 +1096,9 @@ static int dm04_lme2510_tuner(struct dvb_usb_adapter *adap) > } > > if (ret) > - info("TUN Found %s tuner", tun_msg[ret]); > + pr_info("TUN Found %s tuner\n", tun_msg[ret]); > else { > - info("TUN No tuner found --- resetting device"); > + pr_info("TUN No tuner found --- resetting device\n"); > lme_coldreset(d); > return -ENODEV; > } > @@ -1113,7 +1106,7 @@ static int dm04_lme2510_tuner(struct dvb_usb_adapter *adap) > /* Start the Interrupt*/ > ret = lme2510_int_read(adap); > if (ret < 0) { > - info("INT Unable to start Interrupt Service"); > + pr_info("INT Unable to start Interrupt Service\n"); > return -ENODEV; > } > > @@ -1218,7 +1211,7 @@ static void *lme2510_exit_int(struct dvb_usb_device *d) > usb_kill_urb(st->lme_urb); > usb_free_coherent(d->udev, 128, st->buffer, > st->lme_urb->transfer_dma); > - info("Interrupt Service Stopped"); > + pr_info("Interrupt Service Stopped\n"); > } > > return buffer; > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/