From f146c7bc85a51f95c05e0f8173d484eb301ece78 Mon Sep 17 00:00:00 2001 From: Danilo Krummrich Date: Thu, 13 Aug 2026 18:52:04 +0200 Subject: PCI: Add pci_irq_type() to query the allocated interrupt type Add a helper that returns PCI_IRQ_MSIX, PCI_IRQ_MSI, or PCI_IRQ_INTX based on the interrupt type the PCI core selected after pci_alloc_irq_vectors(). Several drivers already open-code this check against pdev->msix_enabled and pdev->msi_enabled, or even open code this helper [1]. A common helper avoids the duplication and keeps drivers from accessing the bitfield directly (see also [2]). Acked-by: Bjorn Helgaas Tested-by: John Hubbard Link: https://elixir.bootlin.com/linux/v7.1/source/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c#L196 [1] Inspired-by: John Hubbard Link: https://lore.kernel.org/all/DKKG2QM3YJYB.Z2H2B2UXJ75N@kernel.org/ [2] Reviewed-by: Gary Guo Link: https://patch.msgid.link/20260813165234.620555-5-dakr@kernel.org [ Add missing pci_irq_type() stub for CONFIG_PCI=n. ] Signed-off-by: Danilo Krummrich --- fs/ext2/xattr_security.c | 59 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 fs/ext2/xattr_security.c (limited to 'fs/ext2/xattr_security.c') diff --git a/fs/ext2/xattr_security.c b/fs/ext2/xattr_security.c new file mode 100644 index 000000000..db47b8ab1 --- /dev/null +++ b/fs/ext2/xattr_security.c @@ -0,0 +1,59 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * linux/fs/ext2/xattr_security.c + * Handler for storing security labels as extended attributes. + */ + +#include "ext2.h" +#include +#include "xattr.h" + +static int +ext2_xattr_security_get(const struct xattr_handler *handler, + struct dentry *unused, struct inode *inode, + const char *name, void *buffer, size_t size) +{ + return ext2_xattr_get(inode, EXT2_XATTR_INDEX_SECURITY, name, + buffer, size); +} + +static int +ext2_xattr_security_set(const struct xattr_handler *handler, + struct mnt_idmap *idmap, + struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags) +{ + return ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY, name, + value, size, flags); +} + +static int ext2_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 = ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY, + xattr->name, xattr->value, + xattr->value_len, 0); + if (err < 0) + break; + } + return err; +} + +int +ext2_init_security(struct inode *inode, struct inode *dir, + const struct qstr *qstr) +{ + return security_inode_init_security(inode, dir, qstr, + &ext2_initxattrs, NULL); +} + +const struct xattr_handler ext2_xattr_security_handler = { + .prefix = XATTR_SECURITY_PREFIX, + .get = ext2_xattr_security_get, + .set = ext2_xattr_security_set, +}; -- cgit v1.3.1