Re: sound/usb/usbaudio.c: coding style

From: Takashi Iwai
Date: Mon Apr 14 2008 - 06:19:29 EST

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Hi,

just back from vacation and struggling with pending patches...

At Sat, 29 Mar 2008 22:09:28 +0100,
Pavel Machek wrote:
>
>
> Putting space between ! and variable is a strange coding style, fix
> that, also make it fit into 80 columns where that is easy.
>
> Signed-off-by: Pavel Machek <pavel@xxxxxxx>

Applied to ALSA tree now (with a fix for a coding issue you introduced
;). Thanks.

Takashi

>
> diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
> index f48838a..8056d8a 100644
> --- a/sound/usb/usbaudio.c
> +++ b/sound/usb/usbaudio.c
> @@ -64,9 +67,10 @@ MODULE_SUPPORTED_DEVICE("{{Generic,USB A
>
> static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
> static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
> -static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
> -static int vid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 }; /* Vendor ID for this card */
> -static int pid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 }; /* Product ID for this card */
> +static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;/* Enable this card */
> +/* Vendor/product IDs for this card */
> +static int vid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 };
> +static int pid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 };
> static int nrpacks = 8; /* max. number of packets per urb */
> static int async_unlink = 1;
> static int device_setup[SNDRV_CARDS]; /* device parameter for this card*/
> @@ -687,7 +691,7 @@ static void snd_complete_urb(struct urb
> int err = 0;
>
> if ((subs->running && subs->ops.retire(subs, substream->runtime, urb)) ||
> - ! subs->running || /* can be stopped during retire callback */
> + !subs->running || /* can be stopped during retire callback */
> (err = subs->ops.prepare(subs, substream->runtime, urb)) < 0 ||
> (err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
> clear_bit(ctx->index, &subs->active_mask);
> @@ -710,7 +714,7 @@ static void snd_complete_sync_urb(struct
> int err = 0;
>
> if ((subs->running && subs->ops.retire_sync(subs, substream->runtime, urb)) ||
> - ! subs->running || /* can be stopped during retire callback */
> + !subs->running || /* can be stopped during retire callback */
> (err = subs->ops.prepare_sync(subs, substream->runtime, urb)) < 0 ||
> (err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
> clear_bit(ctx->index + 16, &subs->active_mask);
> @@ -740,7 +744,7 @@ static int snd_pcm_alloc_vmalloc_buffer(
> vfree(runtime->dma_area);
> }
> runtime->dma_area = vmalloc(size);
> - if (! runtime->dma_area)
> + if (!runtime->dma_area)
> return -ENOMEM;
> runtime->dma_bytes = size;
> return 0;
> @@ -772,12 +776,12 @@ static int deactivate_urbs(struct snd_us
>
> async = !can_sleep && async_unlink;
>
> - if (! async && in_interrupt())
> + if (!async && in_interrupt())
> return 0;
>
> for (i = 0; i < subs->nurbs; i++) {
> if (test_bit(i, &subs->active_mask)) {
> - if (! test_and_set_bit(i, &subs->unlink_mask)) {
> + if (!test_and_set_bit(i, &subs->unlink_mask)) {
> struct urb *u = subs->dataurb[i].urb;
> if (async)
> usb_unlink_urb(u);
> @@ -789,7 +793,7 @@ static int deactivate_urbs(struct snd_us
> if (subs->syncpipe) {
> for (i = 0; i < SYNC_URBS; i++) {
> if (test_bit(i+16, &subs->active_mask)) {
> - if (! test_and_set_bit(i+16, &subs->unlink_mask)) {
> + if (!test_and_set_bit(i+16, &subs->unlink_mask)) {
> struct urb *u = subs->syncurb[i].urb;
> if (async)
> usb_unlink_urb(u);
> @@ -1137,12 +1141,12 @@ static int init_substream_urbs(struct sn
> if (subs->fmt_type == USB_FORMAT_TYPE_II)
> u->packets++; /* for transfer delimiter */
> u->urb = usb_alloc_urb(u->packets, GFP_KERNEL);
> - if (! u->urb)
> + if (!u->urb)
> goto out_of_memory;
> u->urb->transfer_buffer =
> usb_buffer_alloc(subs->dev, u->buffer_size, GFP_KERNEL,
> &u->urb->transfer_dma);
> - if (! u->urb->transfer_buffer)
> + if (!u->urb->transfer_buffer)
> goto out_of_memory;
> u->urb->pipe = subs->datapipe;
> u->urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
> @@ -1155,7 +1159,7 @@ static int init_substream_urbs(struct sn
> /* allocate and initialize sync urbs */
> subs->syncbuf = usb_buffer_alloc(subs->dev, SYNC_URBS * 4,
> GFP_KERNEL, &subs->sync_dma);
> - if (! subs->syncbuf)
> + if (!subs->syncbuf)
> goto out_of_memory;
> for (i = 0; i < SYNC_URBS; i++) {
> struct snd_urb_ctx *u = &subs->syncurb[i];
> @@ -1163,7 +1167,7 @@ static int init_substream_urbs(struct sn
> u->subs = subs;
> u->packets = 1;
> u->urb = usb_alloc_urb(1, GFP_KERNEL);
> - if (! u->urb)
> + if (!u->urb)
> goto out_of_memory;
> u->urb->transfer_buffer = subs->syncbuf + i * 4;
> u->urb->transfer_dma = subs->sync_dma + i * 4;
> @@ -1463,7 +1486,7 @@ static int snd_usb_hw_params(struct snd_
> rate = params_rate(hw_params);
> channels = params_channels(hw_params);
> fmt = find_format(subs, format, rate, channels);
> - if (! fmt) {
> + if (!fmt) {
> snd_printd(KERN_DEBUG "cannot set format: format = 0x%x, rate = %d, channels = %d\n",
> format, rate, channels);
> return -EINVAL;
> @@ -1584,7 +1607,7 @@ static int hw_check_valid_format(struct
> struct snd_mask *fmts = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
>
> /* check the format */
> - if (! snd_mask_test(fmts, fp->format)) {
> + if (!snd_mask_test(fmts, fp->format)) {
> hwc_debug(" > check: no supported format %d\n", fp->format);
> return 0;
> }
> @@ -1620,7 +1643,7 @@ static int hw_rule_rate(struct snd_pcm_h
> list_for_each(p, &subs->fmt_list) {
> struct audioformat *fp;
> fp = list_entry(p, struct audioformat, list);
> - if (! hw_check_valid_format(params, fp))
> + if (!hw_check_valid_format(params, fp))
> continue;
> if (changed++) {
> if (rmin > fp->rate_min)
> @@ -1633,7 +1656,7 @@ static int hw_rule_rate(struct snd_pcm_h
> }
> }
>
> - if (! changed) {
> + if (!changed) {
> hwc_debug(" --> get empty\n");
> it->empty = 1;
> return -EINVAL;
> @@ -1674,7 +1697,7 @@ static int hw_rule_channels(struct snd_p
> list_for_each(p, &subs->fmt_list) {
> struct audioformat *fp;
> fp = list_entry(p, struct audioformat, list);
> - if (! hw_check_valid_format(params, fp))
> + if (!hw_check_valid_format(params, fp))
> continue;
> if (changed++) {
> if (rmin > fp->channels)
> @@ -1687,7 +1710,7 @@ static int hw_rule_channels(struct snd_p
> }
> }
>
> - if (! changed) {
> + if (!changed) {
> hwc_debug(" --> get empty\n");
> it->empty = 1;
> return -EINVAL;
> @@ -1727,7 +1750,7 @@ static int hw_rule_format(struct snd_pcm
> list_for_each(p, &subs->fmt_list) {
> struct audioformat *fp;
> fp = list_entry(p, struct audioformat, list);
> - if (! hw_check_valid_format(params, fp))
> + if (!hw_check_valid_format(params, fp))
> continue;
> fbits |= (1ULL << fp->format);
> }
> @@ -1736,7 +1759,7 @@ static int hw_rule_format(struct snd_pcm
> oldbits[1] = fmt->bits[1];
> fmt->bits[0] &= (u32)fbits;
> fmt->bits[1] &= (u32)(fbits >> 32);
> - if (! fmt->bits[0] && ! fmt->bits[1]) {
> + if (!fmt->bits[0] && !fmt->bits[1]) {
> hwc_debug(" --> get empty\n");
> return -EINVAL;
> }
> @@ -2222,7 +2245,7 @@ static void proc_pcm_format_add(struct s
> struct snd_card *card = stream->chip->card;
>
> sprintf(name, "stream%d", stream->pcm_index);
> - if (! snd_card_proc_new(card, name, &entry))
> + if (!snd_card_proc_new(card, name, &entry))
> snd_info_set_text_ops(entry, stream, proc_pcm_format_read);
> }
>
> @@ -2278,7 +2301,7 @@ static void free_substream(struct snd_us
> {
> struct list_head *p, *n;
>
> - if (! subs->num_formats)
> + if (!subs->num_formats)
> return; /* not initialized */
> list_for_each_safe(p, n, &subs->fmt_list) {
> struct audioformat *fp = list_entry(p, struct audioformat, list);
> @@ -2328,7 +2351,7 @@ static int add_audio_endpoint(struct snd
> if (as->fmt_type != fp->fmt_type)
> continue;
> subs = &as->substream[stream];
> - if (! subs->endpoint)
> + if (!subs->endpoint)
> continue;
> if (subs->endpoint == fp->endpoint) {
> list_add_tail(&fp->list, &subs->fmt_list);
> @@ -2354,7 +2377,7 @@ static int add_audio_endpoint(struct snd
>
> /* create a new pcm */
> as = kzalloc(sizeof(*as), GFP_KERNEL);
> - if (! as)
> + if (!as)
> return -ENOMEM;
> as->pcm_index = chip->pcm_devs;
> as->chip = chip;
> @@ -3375,14 +3398,14 @@ static int snd_usb_create_quirk(struct s
> static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
> {
> struct snd_usb_audio *chip = entry->private_data;
> - if (! chip->shutdown)
> + if (!chip->shutdown)
> snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum);
> }
>
> static void proc_audio_usbid_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
> {
> struct snd_usb_audio *chip = entry->private_data;
> - if (! chip->shutdown)
> + if (!chip->shutdown)
> snd_iprintf(buffer, "%04x:%04x\n",
> USB_ID_VENDOR(chip->usb_id),
> USB_ID_PRODUCT(chip->usb_id));
> @@ -3391,9 +3414,9 @@ static void proc_audio_usbid_read(struct
> static void snd_usb_audio_create_proc(struct snd_usb_audio *chip)
> {
> struct snd_info_entry *entry;
> - if (! snd_card_proc_new(chip->card, "usbbus", &entry))
> + if (!snd_card_proc_new(chip->card, "usbbus", &entry))
> snd_info_set_text_ops(entry, chip, proc_audio_usbbus_read);
> - if (! snd_card_proc_new(chip->card, "usbid", &entry))
> + if (!snd_card_proc_new(chip->card, "usbid", &entry))
> snd_info_set_text_ops(entry, chip, proc_audio_usbid_read);
> }
>
> @@ -3600,8 +3623,8 @@ static void *snd_usb_audio_probe(struct
> snd_card_set_dev(chip->card, &intf->dev);
> break;
> }
> - if (! chip) {
> - snd_printk(KERN_ERR "no available usb audio device\n");
> + if (!chip) {
> + printk(KERN_ERR "no available usb audio device\n");
> goto __error;
> }
> }
>
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
>
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Next message: Takashi Iwai: "Re: sound/usb/usbaudio.c: printk() is fine"
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Next in thread: Pavel Machek: "Re: sound/usb/usbaudio.c: coding style"
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