Commit f6295766 authored by Thomas Weißschuh's avatar Thomas Weißschuh Committed by Greg Kroah-Hartman
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powerpc/powernv/ultravisor: Constify 'struct bin_attribute' 



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.

Signed-off-by: default avatarThomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20241216-sysfs-const-bin_attr-powerpc-v1-3-bbed8906f476@weissschuh.net


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 982d13db

arch/powerpc/platforms/powernv/ultravisor.c

+3 −3
Original line number Diff line number Diff line
@@ -32,15 +32,15 @@ int __init early_init_dt_scan_ultravisor(unsigned long node, const char *uname, 
static struct memcons *uv_memcons;



static ssize_t uv_msglog_read(struct file *file, struct kobject *kobj,

			      struct bin_attribute *bin_attr, char *to,

			      const struct bin_attribute *bin_attr, char *to,

			      loff_t pos, size_t count)

{

	return memcons_copy(uv_memcons, to, pos, count);

}



static struct bin_attribute uv_msglog_attr = {

static struct bin_attribute uv_msglog_attr __ro_after_init = {

	.attr = {.name = "msglog", .mode = 0400},

	.read = uv_msglog_read

	.read_new = uv_msglog_read

};



static int __init uv_init(void)