/* * linux/fs/proc/kmsg.c * * Copyright (C) 1992 by Linus Torvalds * */ #include #include #include #include #include #include #include #include #include #include extern wait_queue_head_t log_wait; static int kmsg_open(struct inode * inode, struct file * file) { return do_syslog(SYSLOG_ACTION_OPEN, NULL, 0, SYSLOG_FROM_PROC); } static int kmsg_release(struct inode * inode, struct file * file) { (void) do_syslog(SYSLOG_ACTION_CLOSE, NULL, 0, SYSLOG_FROM_PROC); return 0; } static ssize_t kmsg_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { if ((file->f_flags & O_NONBLOCK) && !do_syslog(SYSLOG_ACTION_SIZE_UNREAD, NULL, 0, SYSLOG_FROM_PROC)) return -EAGAIN; return do_syslog(SYSLOG_ACTION_READ, buf, count, SYSLOG_FROM_PROC); } static unsigned int kmsg_poll(struct file *file, poll_table *wait) { poll_wait(file, &log_wait, wait); if (do_syslog(SYSLOG_ACTION_SIZE_UNREAD, NULL, 0, SYSLOG_FROM_PROC)) return POLLIN | POLLRDNORM; return 0; } static const struct file_operations proc_kmsg_operations = { .read = kmsg_read, .poll = kmsg_poll, .open = kmsg_open, .release = kmsg_release, .llseek = generic_file_llseek, }; static int __init proc_kmsg_init(void) { proc_create("kmsg", S_IRUSR, NULL, &proc_kmsg_operations); return 0; } fs_initcall(proc_kmsg_init); /td>Tobias Klauser
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authorBjorn Helgaas <bhelgaas@google.com>2016-12-28 14:55:16 -0600
committerBjorn Helgaas <bhelgaas@google.com>2017-01-11 09:11:15 -0600
commit89e9f7bcd8744ea25fcf0ac671b8d72c10d7d790 (patch)
treee941c52704b59bc7d5ffe0bbaa2d42b8fec8976a /include/net/af_ieee802154.h
parenta782b5f986c3fa1cfa7f2b57941200c6a5809242 (diff)
x86/PCI: Ignore _CRS on Supermicro X8DTH-i/6/iF/6F
Martin reported that the Supermicro X8DTH-i/6/iF/6F advertises incorrect host bridge windows via _CRS: pci_root PNP0A08:00: host bridge window [io 0xf000-0xffff] pci_root PNP0A08:01: host bridge window [io 0xf000-0xffff] Both bridges advertise the 0xf000-0xffff window, which cannot be correct. Work around this by ignoring _CRS on this system. The downside is that we may not assign resources correctly to hot-added PCI devices (if they are possible on this system). Link: https://bugzilla.kernel.org/show_bug.cgi?id=42606 Reported-by: Martin Burnicki <martin.burnicki@meinberg.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org
Diffstat (limited to 'include/net/af_ieee802154.h')