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module: Handle 'struct module_version_attribute' as const
The structure is always read-only due to its placement in the read-only section __modver. Reflect this at its usage sites. Also prepare for the const handling of 'struct module_attribute' itself. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Reviewed-by: Petr Pavlu <petr.pavlu@suse.com> Link: https://lore.kernel.org/r/20241216-sysfs-const-attr-module-v1-2-3790b53e0abf@weissschuh.net Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
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@ -275,7 +275,7 @@ extern typeof(name) __mod_device_table__##type##__##name \
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#else
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#define MODULE_VERSION(_version) \
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MODULE_INFO(version, _version); \
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static struct module_version_attribute __modver_attr \
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static const struct module_version_attribute __modver_attr \
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__used __section("__modver") \
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__aligned(__alignof__(struct module_version_attribute)) \
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= { \
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@ -860,8 +860,8 @@ static void __init param_sysfs_builtin(void)
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ssize_t __modver_version_show(struct module_attribute *mattr,
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struct module_kobject *mk, char *buf)
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{
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struct module_version_attribute *vattr =
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container_of(mattr, struct module_version_attribute, mattr);
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const struct module_version_attribute *vattr =
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container_of_const(mattr, struct module_version_attribute, mattr);
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return scnprintf(buf, PAGE_SIZE, "%s\n", vattr->version);
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}
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