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Documentation: deprecated.rst: kmalloc-family: mark argument as optional

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put the optional argument (gfp) in square brackets
add default value = GFP_KERNEL

eg. ptr = kmalloc_obj(*ptr, gfp);
 -> ptr = kmalloc_obj(*ptr [, gfp] );

Signed-off-by: Manuel Ebner <manuelebner@mailbox.org>
Acked-by: SeongJae Park <sj@kernel.org>
Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260429072704.311603-2-manuelebner@mailbox.org>
This commit is contained in:
Manuel Ebner
2026-04-29 09:27:04 +02:00
committed by Jonathan Corbet
parent f61bf5fdf7
commit d957b4184a
1 changed files with 7 additions and 6 deletions
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13
Documentation/process/deprecated.rst
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@@ -392,13 +392,14 @@ allocations. For example, these open coded assignments::
become, respectively::
ptr = kmalloc_obj(*ptr, gfp);
ptr = kzalloc_obj(*ptr, gfp);
ptr = kmalloc_objs(*ptr, count, gfp);
ptr = kzalloc_objs(*ptr, count, gfp);
ptr = kmalloc_flex(*ptr, flex_member, count, gfp);
__auto_type ptr = kmalloc_obj(struct foo, gfp);
ptr = kmalloc_obj(*ptr [, gfp] );
ptr = kzalloc_obj(*ptr [, gfp] );
ptr = kmalloc_objs(*ptr, count [, gfp] );
ptr = kzalloc_objs(*ptr, count [, gfp] );
ptr = kmalloc_flex(*ptr, flex_member, count [, gfp] );
__auto_type ptr = kmalloc_obj(struct foo [, gfp] );
The argument gfp is optional, the default value is GFP_KERNEL.
If `ptr->flex_member` is annotated with __counted_by(), the allocation
will automatically fail if `count` is larger than the maximum
representable value that can be stored in the counter member associated