From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AIpwx48T+zQ6RwbhGQxaOyuE60M1/PkOtM3IYcztIw7caiAyVOobixfBfJOsT03FkARjolsWivXo ARC-Seal: i=1; a=rsa-sha256; t=1524141825; cv=none; d=google.com; s=arc-20160816; b=llAHw1jnbxoAXmwC4r2ZCu8cKtc9M8CFEovPPLaQYgL5J129FDJ2xxS4ehiBphieIt qXlr3k4w7t0gVfXc37UiH0iK+oV0l4C1qOg6l1e9cX0PCeGWLfd1ki9flOzVzY0X9P0d kvYyA1wE9O1zqZmLFotMkO8gaY3+7EgWNuwuoiYcTVQ2Zv3yBB7995b/B2ngiN3KNskG LcGJ+hkE7VbGzIB7sGnzLVG4m6kC9XqLXo1pKqgtGEIbna8y/rIXheIYH6sJVc3tQ/CO F+8B2OnOsBS8/AN845omV2OXUNxn6ZLOJAVc8jYYjaXW2zVbYUGQjvzGN9gknycINkzf jTDg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature:arc-authentication-results; bh=GTrUthCMCvz/WgK420kGDqMxfC+70xqzgZlDMTrA2Vg=; b=DDrwg2hIgYe4ykqIkcbuO6J2JpF+Go66Tj+hcUs+iMk5wSDjvauE25RUlC08PiUJ7N SMXhTaicOUzkYR/gmkpOJs0mcK+5XGETkycmNqdWpKVX7iJsu/ne1vrDIehvMD8YKPO0 YxviCmi7DEg13sbESffhjTYyaiMtaAKBungWmaD62aBLScuKcFCLY6dKE7tgmp4pimvG 5gWUO+tvK4kZ9x7CHn9SK51Aeqh8b57S7vn6IXQWLcNqRtFWKNq6WvAUqzr6vB28km6T YHClWuJdNgV/ng7dBKVJ+8uytVnAhIEsieqzncv7TUYMJlNM6h02YYsbDFzs9sCrVOZs QHvw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=bombadil.20170209 header.b=Fc8obFSr; spf=pass (google.com: best guess record for domain of batv+e1a5265bff2368ff7229+5352+infradead.org+hch@bombadil.srs.infradead.org designates 198.137.202.133 as permitted sender) smtp.mailfrom=BATV+e1a5265bff2368ff7229+5352+infradead.org+hch@bombadil.srs.infradead.org Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=bombadil.20170209 header.b=Fc8obFSr; spf=pass (google.com: best guess record for domain of batv+e1a5265bff2368ff7229+5352+infradead.org+hch@bombadil.srs.infradead.org designates 198.137.202.133 as permitted sender) smtp.mailfrom=BATV+e1a5265bff2368ff7229+5352+infradead.org+hch@bombadil.srs.infradead.org From: Christoph Hellwig To: Andrew Morton , Alexander Viro Cc: Alexey Dobriyan , Greg Kroah-Hartman , Jiri Slaby , Corey Minyard , Alessandro Zummo , Alexandre Belloni , linux-acpi@vger.kernel.org, drbd-dev@lists.linbit.com, linux-ide@vger.kernel.org, netdev@vger.kernel.org, linux-rtc@vger.kernel.org, megaraidlinux.pdl@broadcom.com, linux-scsi@vger.kernel.org, devel@driverdev.osuosl.org, linux-afs@lists.infradead.org, linux-ext4@vger.kernel.org, jfs-discussion@lists.sourceforge.net, netfilter-devel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 34/39] atm: switch to proc_create_seq_private Date: Thu, 19 Apr 2018 14:41:35 +0200 Message-Id: <20180419124140.9309-35-hch@lst.de> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180419124140.9309-1-hch@lst.de> References: <20180419124140.9309-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1598178538806622598?= X-GMAIL-MSGID: =?utf-8?q?1598178538806622598?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: And remove proc boilerplate code. Signed-off-by: Christoph Hellwig --- net/atm/proc.c | 72 +++++++++----------------------------------------- 1 file changed, 13 insertions(+), 59 deletions(-) diff --git a/net/atm/proc.c b/net/atm/proc.c index f272b0f59d82..0b0495a41bbe 100644 --- a/net/atm/proc.c +++ b/net/atm/proc.c @@ -68,7 +68,6 @@ static void atm_dev_info(struct seq_file *seq, const struct atm_dev *dev) struct vcc_state { int bucket; struct sock *sk; - int family; }; static inline int compare_family(struct sock *sk, int family) @@ -106,23 +105,13 @@ static int __vcc_walk(struct sock **sock, int family, int *bucket, loff_t l) return (l < 0); } -static inline void *vcc_walk(struct vcc_state *state, loff_t l) +static inline void *vcc_walk(struct seq_file *seq, loff_t l) { - return __vcc_walk(&state->sk, state->family, &state->bucket, l) ? - state : NULL; -} - -static int __vcc_seq_open(struct inode *inode, struct file *file, - int family, const struct seq_operations *ops) -{ - struct vcc_state *state; - - state = __seq_open_private(file, ops, sizeof(*state)); - if (state == NULL) - return -ENOMEM; + struct vcc_state *state = seq->private; + int family = (uintptr_t)(PDE_DATA(file_inode(seq->file))); - state->family = family; - return 0; + return __vcc_walk(&state->sk, family, &state->bucket, l) ? + state : NULL; } static void *vcc_seq_start(struct seq_file *seq, loff_t *pos) @@ -133,7 +122,7 @@ static void *vcc_seq_start(struct seq_file *seq, loff_t *pos) read_lock(&vcc_sklist_lock); state->sk = SEQ_START_TOKEN; - return left ? vcc_walk(state, left) : SEQ_START_TOKEN; + return left ? vcc_walk(seq, left) : SEQ_START_TOKEN; } static void vcc_seq_stop(struct seq_file *seq, void *v) @@ -144,9 +133,7 @@ static void vcc_seq_stop(struct seq_file *seq, void *v) static void *vcc_seq_next(struct seq_file *seq, void *v, loff_t *pos) { - struct vcc_state *state = seq->private; - - v = vcc_walk(state, 1); + v = vcc_walk(seq, 1); *pos += !!PTR_ERR(v); return v; } @@ -280,18 +267,6 @@ static const struct seq_operations pvc_seq_ops = { .show = pvc_seq_show, }; -static int pvc_seq_open(struct inode *inode, struct file *file) -{ - return __vcc_seq_open(inode, file, PF_ATMPVC, &pvc_seq_ops); -} - -static const struct file_operations pvc_seq_fops = { - .open = pvc_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release_private, -}; - static int vcc_seq_show(struct seq_file *seq, void *v) { if (v == SEQ_START_TOKEN) { @@ -314,18 +289,6 @@ static const struct seq_operations vcc_seq_ops = { .show = vcc_seq_show, }; -static int vcc_seq_open(struct inode *inode, struct file *file) -{ - return __vcc_seq_open(inode, file, 0, &vcc_seq_ops); -} - -static const struct file_operations vcc_seq_fops = { - .open = vcc_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release_private, -}; - static int svc_seq_show(struct seq_file *seq, void *v) { static const char atm_svc_banner[] = @@ -349,18 +312,6 @@ static const struct seq_operations svc_seq_ops = { .show = svc_seq_show, }; -static int svc_seq_open(struct inode *inode, struct file *file) -{ - return __vcc_seq_open(inode, file, PF_ATMSVC, &svc_seq_ops); -} - -static const struct file_operations svc_seq_fops = { - .open = svc_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release_private, -}; - static ssize_t proc_dev_atm_read(struct file *file, char __user *buf, size_t count, loff_t *pos) { @@ -434,9 +385,12 @@ int __init atm_proc_init(void) if (!atm_proc_root) return -ENOMEM; proc_create_seq("devices", 0444, atm_proc_root, &atm_dev_seq_ops); - proc_create("pvc", 0444, atm_proc_root, &pvc_seq_fops); - proc_create("svc", 0444, atm_proc_root, &svc_seq_fops); - proc_create("vc", 0444, atm_proc_root, &vcc_seq_fops); + proc_create_seq_private("pvc", 0444, atm_proc_root, &pvc_seq_ops, + sizeof(struct vcc_state), (void *)(uintptr_t)PF_ATMPVC); + proc_create_seq_private("svc", 0444, atm_proc_root, &svc_seq_ops, + sizeof(struct vcc_state), (void *)(uintptr_t)PF_ATMSVC); + proc_create_seq_private("vc", 0444, atm_proc_root, &vcc_seq_ops, + sizeof(struct vcc_state), NULL); return 0; } -- 2.17.0