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From: Kees Cook <kees@kernel.org>
To: Luis Chamberlain <mcgrof@kernel.org>
Cc: "Kees Cook" <kees@kernel.org>,
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Subject: [PATCH 05/11] moduleparam: Rename .get field to .get_str
Date: Thu, 21 May 2026 06:33:18 -0700	[thread overview]
Message-ID: <20260521133326.2465264-5-kees@kernel.org> (raw)
In-Reply-To: <20260521133315.work.845-kees@kernel.org>

Now that every kernel_param_ops initializer in the tree goes through
DEFINE_KERNEL_PARAM_OPS, no source file outside kernel/params.c and
include/linux/moduleparam.h references the .get field by name. Take
advantage of that to rename the field to .get_str.

The bare .get name is now free for the next commit, which adds it
back as a struct seq_buf *-based callback.

Signed-off-by: Kees Cook <kees@kernel.org>
---
 include/linux/moduleparam.h | 8 ++++----
 kernel/params.c             | 6 +++---
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 26bf45b36d02..f5f4148e2504 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -63,7 +63,7 @@ struct kernel_param_ops {
 	/* Returns 0, or -errno.  arg is in kp->arg. */
 	int (*set)(const char *val, const struct kernel_param *kp);
 	/* Returns length written or -errno.  Buffer is 4k (ie. be short!) */
-	int (*get)(char *buffer, const struct kernel_param *kp);
+	int (*get_str)(char *buffer, const struct kernel_param *kp);
 	/* Optional function to free kp->arg when module unloaded. */
 	void (*free)(void *arg);
 };
@@ -82,7 +82,7 @@ struct kernel_param_ops {
 #define DEFINE_KERNEL_PARAM_OPS(_name, _set, _get)			\
 	const struct kernel_param_ops _name = {				\
 		.set = (_set),						\
-		.get = (_get),						\
+		.get_str = (_get),					\
 	}
 
 /* As DEFINE_KERNEL_PARAM_OPS, with KERNEL_PARAM_OPS_FL_NOARG set. */
@@ -90,14 +90,14 @@ struct kernel_param_ops {
 	const struct kernel_param_ops _name = {				\
 		.flags = KERNEL_PARAM_OPS_FL_NOARG,			\
 		.set = (_set),						\
-		.get = (_get),						\
+		.get_str = (_get),					\
 	}
 
 /* As DEFINE_KERNEL_PARAM_OPS, with an additional .free callback. */
 #define DEFINE_KERNEL_PARAM_OPS_FREE(_name, _set, _get, _free)		\
 	const struct kernel_param_ops _name = {				\
 		.set = (_set),						\
-		.get = (_get),						\
+		.get_str = (_get),					\
 		.free = (_free),					\
 	}
 
diff --git a/kernel/params.c b/kernel/params.c
index e19fff2926bc..6852caea1785 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -467,7 +467,7 @@ static int param_array_get(char *buffer, const struct kernel_param *kp)
 	for (i = off = 0; i < (arr->num ? *arr->num : arr->max); i++) {
 		p.arg = arr->elem + arr->elemsize * i;
 		check_kparam_locked(p.mod);
-		ret = arr->ops->get(elem_buf, &p);
+		ret = arr->ops->get_str(elem_buf, &p);
 		if (ret < 0)
 			goto out;
 		ret = min(ret, (int)(PAGE_SIZE - 1 - off));
@@ -554,11 +554,11 @@ static ssize_t param_attr_show(const struct module_attribute *mattr,
 	int count;
 	const struct param_attribute *attribute = to_param_attr(mattr);
 
-	if (!attribute->param->ops->get)
+	if (!attribute->param->ops->get_str)
 		return -EPERM;
 
 	kernel_param_lock(mk->mod);
-	count = attribute->param->ops->get(buf, attribute->param);
+	count = attribute->param->ops->get_str(buf, attribute->param);
 	kernel_param_unlock(mk->mod);
 	return count;
 }
-- 
2.34.1


  parent reply	other threads:[~2026-05-21 13:33 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-21 13:33 [PATCH 00/11] Convert moduleparams to seq_buf Kees Cook
2026-05-21 13:33 ` [PATCH 01/11] params: bound array element output to the caller's page buffer Kees Cook
2026-05-21 16:46   ` David Laight
2026-05-21 13:33 ` [PATCH 02/11] panic: Replace panic_print_get() with generic helper Kees Cook
2026-05-21 13:33 ` [PATCH 03/11] moduleparam: Add DEFINE_KERNEL_PARAM_OPS macro family Kees Cook
2026-05-21 13:33 ` [PATCH 04/11] treewide: Convert struct kernel_param_ops initializers to DEFINE_KERNEL_PARAM_OPS Kees Cook
2026-05-21 13:59   ` Sean Christopherson
2026-05-21 13:33 ` Kees Cook [this message]
2026-05-21 13:33 ` [PATCH 06/11] moduleparam: Add seq_buf-based .get callback alongside .get_str Kees Cook
2026-05-21 13:33 ` [PATCH 07/11] moduleparam: Route DEFINE_KERNEL_PARAM_OPS get pointer via _Generic Kees Cook
2026-05-21 13:33 ` [PATCH 08/11] params: Convert generic kernel_param_ops .get helpers to seq_buf Kees Cook
2026-05-21 13:33 ` [PATCH 09/11] treewide: Convert custom kernel_param_ops .get callbacks to seq_buf via cocci Kees Cook
2026-05-21 13:45   ` Sean Christopherson
2026-05-21 13:33 ` [PATCH 10/11] treewide: Manually convert custom kernel_param_ops .get callbacks Kees Cook
2026-05-21 17:44   ` Jani Nikula
2026-05-21 13:33 ` [PATCH 11/11] moduleparam: Drop legacy kernel_param_ops .get_str field and dispatch logic Kees Cook

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