From 35fdb302caab92f7ee998ff428b0f41c2c3a45f7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= Date: Mon, 2 Dec 2024 20:02:59 +0100 Subject: [PATCH] PCI/P2PDMA: Constify 'struct bin_attribute' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The sysfs core now allows instances of 'struct bin_attribute' to be moved into read-only memory. Make use of that to protect them against accidental or malicious modifications. Link: https://lore.kernel.org/r/20241202-sysfs-const-bin_attr-pci-v1-3-c32360f495a7@weissschuh.net Signed-off-by: Thomas Weißschuh Signed-off-by: Bjorn Helgaas Reviewed-by: Logan Gunthorpe --- drivers/pci/p2pdma.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c index 7abd4f546d3c0..0cb7e0aaba0eb 100644 --- a/drivers/pci/p2pdma.c +++ b/drivers/pci/p2pdma.c @@ -161,7 +161,7 @@ static int p2pmem_alloc_mmap(struct file *filp, struct kobject *kobj, return ret; } -static struct bin_attribute p2pmem_alloc_attr = { +static const struct bin_attribute p2pmem_alloc_attr = { .attr = { .name = "allocate", .mode = 0660 }, .mmap = p2pmem_alloc_mmap, /* @@ -180,14 +180,14 @@ static struct attribute *p2pmem_attrs[] = { NULL, }; -static struct bin_attribute *p2pmem_bin_attrs[] = { +static const struct bin_attribute *const p2pmem_bin_attrs[] = { &p2pmem_alloc_attr, NULL, }; static const struct attribute_group p2pmem_group = { .attrs = p2pmem_attrs, - .bin_attrs = p2pmem_bin_attrs, + .bin_attrs_new = p2pmem_bin_attrs, .name = "p2pmem", };