From: YueHaibing <yuehaibing@huawei.com> To: <perex@perex.cz>, <tiwai@suse.com> Cc: <alsa-devel@alsa-project.org>, <linux-kernel@vger.kernel.org>, YueHaibing <yuehaibing@huawei.com> Subject: [PATCH -next] ALSA: core: use DEVICE_ATTR_*() macro Date: Wed, 26 May 2021 20:18:28 +0800 [thread overview] Message-ID: <20210526121828.8460-1-yuehaibing@huawei.com> (raw) Use DEVICE_ATTR_*() helper instead of plain DEVICE_ATTR, which makes the code a bit shorter and easier to read. Signed-off-by: YueHaibing <yuehaibing@huawei.com> --- sound/core/init.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/sound/core/init.c b/sound/core/init.c index 70114fd26956..228faf9369dc 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -665,17 +665,15 @@ void snd_card_set_id(struct snd_card *card, const char *nid) } EXPORT_SYMBOL(snd_card_set_id); -static ssize_t -card_id_show_attr(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t id_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct snd_card *card = container_of(dev, struct snd_card, card_dev); return scnprintf(buf, PAGE_SIZE, "%s\n", card->id); } -static ssize_t -card_id_store_attr(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t id_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct snd_card *card = container_of(dev, struct snd_card, card_dev); char buf1[sizeof(card->id)]; @@ -703,17 +701,16 @@ card_id_store_attr(struct device *dev, struct device_attribute *attr, return count; } -static DEVICE_ATTR(id, 0644, card_id_show_attr, card_id_store_attr); +static DEVICE_ATTR_RW(id); -static ssize_t -card_number_show_attr(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t number_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct snd_card *card = container_of(dev, struct snd_card, card_dev); return scnprintf(buf, PAGE_SIZE, "%i\n", card->number); } -static DEVICE_ATTR(number, 0444, card_number_show_attr, NULL); +static DEVICE_ATTR_RO(number); static struct attribute *card_dev_attrs[] = { &dev_attr_id.attr, -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: YueHaibing <yuehaibing@huawei.com> To: <perex@perex.cz>, <tiwai@suse.com> Cc: alsa-devel@alsa-project.org, YueHaibing <yuehaibing@huawei.com>, linux-kernel@vger.kernel.org Subject: [PATCH -next] ALSA: core: use DEVICE_ATTR_*() macro Date: Wed, 26 May 2021 20:18:28 +0800 [thread overview] Message-ID: <20210526121828.8460-1-yuehaibing@huawei.com> (raw) Use DEVICE_ATTR_*() helper instead of plain DEVICE_ATTR, which makes the code a bit shorter and easier to read. Signed-off-by: YueHaibing <yuehaibing@huawei.com> --- sound/core/init.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/sound/core/init.c b/sound/core/init.c index 70114fd26956..228faf9369dc 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -665,17 +665,15 @@ void snd_card_set_id(struct snd_card *card, const char *nid) } EXPORT_SYMBOL(snd_card_set_id); -static ssize_t -card_id_show_attr(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t id_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct snd_card *card = container_of(dev, struct snd_card, card_dev); return scnprintf(buf, PAGE_SIZE, "%s\n", card->id); } -static ssize_t -card_id_store_attr(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t id_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct snd_card *card = container_of(dev, struct snd_card, card_dev); char buf1[sizeof(card->id)]; @@ -703,17 +701,16 @@ card_id_store_attr(struct device *dev, struct device_attribute *attr, return count; } -static DEVICE_ATTR(id, 0644, card_id_show_attr, card_id_store_attr); +static DEVICE_ATTR_RW(id); -static ssize_t -card_number_show_attr(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t number_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct snd_card *card = container_of(dev, struct snd_card, card_dev); return scnprintf(buf, PAGE_SIZE, "%i\n", card->number); } -static DEVICE_ATTR(number, 0444, card_number_show_attr, NULL); +static DEVICE_ATTR_RO(number); static struct attribute *card_dev_attrs[] = { &dev_attr_id.attr, -- 2.17.1
next reply other threads:[~2021-05-26 12:18 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-05-26 12:18 YueHaibing [this message] 2021-05-26 12:18 ` [PATCH -next] ALSA: core: use DEVICE_ATTR_*() macro YueHaibing 2021-05-28 14:34 ` Takashi Iwai 2021-05-28 14:34 ` Takashi Iwai
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