/* * JFFS2 -- Journalling Flash File System, Version 2. * * Copyright © 2006 NEC Corporation * * Created by KaiGai Kohei * * For licensing information, see the file 'LICENCE' in this directory. * */ #include #include #include #include #include #include #include #include #include #include #include #include "nodelist.h" /* ---- Initial Security Label(s) Attachment callback --- */ static int jffs2_initxattrs(struct inode *inode, const struct xattr *xattr_array, void *fs_info) { const struct xattr *xattr; int err = 0; for (xattr = xattr_array; xattr->name != NULL; xattr++) { err = do_jffs2_setxattr(inode, JFFS2_XPREFIX_SECURITY, xattr->name, xattr->value, xattr->value_len, 0); if (err < 0) break; } return err; } /* ---- Initial Security Label(s) Attachment ----------- */ int jffs2_init_security(struct inode *inode, struct inode *dir, const struct qstr *qstr) { return security_inode_init_security(inode, dir, qstr, &jffs2_initxattrs, NULL); } /* ---- XATTR Handler for "security.*" ----------------- */ static int jffs2_security_getxattr(const struct xattr_handler *handler, struct dentry *unused, struct inode *inode, const char *name, void *buffer, size_t size) { return do_jffs2_getxattr(inode, JFFS2_XPREFIX_SECURITY, name, buffer, size); } static int jffs2_security_setxattr(const struct xattr_handler *handler, struct dentry *unused, struct inode *inode, const char *name, const void *buffer, size_t size, int flags) { return do_jffs2_setxattr(inode, JFFS2_XPREFIX_SECURITY, name, buffer, size, flags); } const struct xattr_handler jffs2_security_xattr_handler = { .prefix = XATTR_SECURITY_PREFIX, .set = jffs2_security_setxattr, .get = jffs2_security_getxattr }; c'>treecommitdiff
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authorMarc Zyngier <marc.zyngier@arm.com>2017-01-17 16:00:48 +0000
committerThomas Gleixner <tglx@linutronix.de>2017-01-30 15:18:56 +0100
commit08d85f3ea99f1eeafc4e8507936190e86a16ee8c (patch)
tree410bb1acd0cd7dcfaad37ae7b63ff243b7fa4bee /tools/laptop/dslm/dslm.c
parent566cf877a1fcb6d6dc0126b076aad062054c2637 (diff)
irqdomain: Avoid activating interrupts more than once
Since commit f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early"), we can end-up activating a PCI/MSI twice (once at allocation time, and once at startup time). This is normally of no consequences, except that there is some HW out there that may misbehave if activate is used more than once (the GICv3 ITS, for example, uses the activate callback to issue the MAPVI command, and the architecture spec says that "If there is an existing mapping for the EventID-DeviceID combination, behavior is UNPREDICTABLE"). While this could be worked around in each individual driver, it may make more sense to tackle the issue at the core level. In order to avoid getting in that situation, let's have a per-interrupt flag to remember if we have already activated that interrupt or not. Fixes: f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early") Reported-and-tested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1484668848-24361-1-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'tools/laptop/dslm/dslm.c')