[patch 034/262] slab: clean up function prototypes

Andrew Morton
2021-11-05T20:36:26Z

From: Kees Cook <keescook@chromium.org>
Subject: slab: clean up function prototypes

Based on feedback from Joe Perches and Linus Torvalds, regularize the slab
function prototypes before making attribute changes.

Link: https://lkml.kernel.org/r/20210930222704.2631604-4-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Alexandre Bounine <alex.bou9@gmail.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Daniel Micay <danielmicay@gmail.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Dwaipayan Ray <dwaipayanray1@gmail.com>
Cc: Gustavo A. R. Silva <gustavoars@kernel.org>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jing Xiangfeng <jingxiangfeng@huawei.com>
Cc: Joe Perches <joe@perches.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

include/linux/slab.h | 68 ++++++++++++++++++++---------------------
1 file changed, 34 insertions(+), 34 deletions(-)

--- a/include/linux/slab.h~slab-clean-up-function-prototypes
+++ a/include/linux/slab.h
@@ -152,8 +152,8 @@ struct kmem_cache *kmem_cache_create_use
slab_flags_t flags,
unsigned int useroffset, unsigned int usersize,
void (*ctor)(void *));
-void kmem_cache_destroy(struct kmem_cache *);
-int kmem_cache_shrink(struct kmem_cache *);
+void kmem_cache_destroy(struct kmem_cache *s);
+int kmem_cache_shrink(struct kmem_cache *s);

/*
* Please use this macro to create slab caches. Simply specify the
@@ -181,11 +181,11 @@ int kmem_cache_shrink(struct kmem_cache
/*
* Common kmalloc functions provided by all allocators
*/
-void * __must_check krealloc(const void *, size_t, gfp_t);
-void kfree(const void *);
-void kfree_sensitive(const void *);
-size_t __ksize(const void *);
-size_t ksize(const void *);
+void * __must_check krealloc(const void *objp, size_t new_size, gfp_t flags);
+void kfree(const void *objp);
+void kfree_sensitive(const void *objp);
+size_t __ksize(const void *objp);
+size_t ksize(const void *objp);
#ifdef CONFIG_PRINTK
bool kmem_valid_obj(void *object);
void kmem_dump_obj(void *object);
@@ -426,8 +426,8 @@ static __always_inline unsigned int __km
#endif /* !CONFIG_SLOB */

void *__kmalloc(size_t size, gfp_t flags) __assume_kmalloc_alignment __malloc;
-void *kmem_cache_alloc(struct kmem_cache *, gfp_t flags) __assume_slab_alignment __malloc;
-void kmem_cache_free(struct kmem_cache *, void *);
+void *kmem_cache_alloc(struct kmem_cache *s, gfp_t flags) __assume_slab_alignment __malloc;
+void kmem_cache_free(struct kmem_cache *s, void *objp);

/*
* Bulk allocation and freeing operations. These are accelerated in an
@@ -436,8 +436,8 @@ void kmem_cache_free(struct kmem_cache *
*
* Note that interrupts must be enabled when calling these functions.
*/
-void kmem_cache_free_bulk(struct kmem_cache *, size_t, void **);
-int kmem_cache_alloc_bulk(struct kmem_cache *, gfp_t, size_t, void **);
+void kmem_cache_free_bulk(struct kmem_cache *s, size_t size, void **p);
+int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size, void **p);

/*
* Caller must not use kfree_bulk() on memory not originally allocated
@@ -450,7 +450,8 @@ static __always_inline void kfree_bulk(s

#ifdef CONFIG_NUMA
void *__kmalloc_node(size_t size, gfp_t flags, int node) __assume_kmalloc_alignment __malloc;
-void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node) __assume_slab_alignment __malloc;
+void *kmem_cache_alloc_node(struct kmem_cache *s, gfp_t flags, int node) __assume_slab_alignment
+ __malloc;
#else
static __always_inline void *__kmalloc_node(size_t size, gfp_t flags, int node)
{
@@ -464,25 +465,24 @@ static __always_inline void *kmem_cache_
#endif

#ifdef CONFIG_TRACING
-extern void *kmem_cache_alloc_trace(struct kmem_cache *, gfp_t, size_t) __assume_slab_alignment __malloc;
+extern void *kmem_cache_alloc_trace(struct kmem_cache *s, gfp_t flags, size_t size)
+ __assume_slab_alignment __malloc;

#ifdef CONFIG_NUMA
-extern void *kmem_cache_alloc_node_trace(struct kmem_cache *s,
- gfp_t gfpflags,
- int node, size_t size) __assume_slab_alignment __malloc;
+extern void *kmem_cache_alloc_node_trace(struct kmem_cache *s, gfp_t gfpflags,
+ int node, size_t size) __assume_slab_alignment __malloc;
#else
-static __always_inline void *
-kmem_cache_alloc_node_trace(struct kmem_cache *s,
- gfp_t gfpflags,
- int node, size_t size)
+static __always_inline void *kmem_cache_alloc_node_trace(struct kmem_cache *s,
+ gfp_t gfpflags, int node,
+ size_t size)
{
return kmem_cache_alloc_trace(s, gfpflags, size);
}
#endif /* CONFIG_NUMA */

#else /* CONFIG_TRACING */
-static __always_inline void *kmem_cache_alloc_trace(struct kmem_cache *s,
- gfp_t flags, size_t size)
+static __always_inline void *kmem_cache_alloc_trace(struct kmem_cache *s, gfp_t flags,
+ size_t size)
{
void *ret = kmem_cache_alloc(s, flags);

@@ -490,10 +490,8 @@ static __always_inline void *kmem_cache_
return ret;
}

-static __always_inline void *
-kmem_cache_alloc_node_trace(struct kmem_cache *s,
- gfp_t gfpflags,
- int node, size_t size)
+static __always_inline void *kmem_cache_alloc_node_trace(struct kmem_cache *s, gfp_t gfpflags,
+ int node, size_t size)
{
void *ret = kmem_cache_alloc_node(s, gfpflags, node);

@@ -502,13 +500,14 @@ kmem_cache_alloc_node_trace(struct kmem_
}
#endif /* CONFIG_TRACING */

-extern void *kmalloc_order(size_t size, gfp_t flags, unsigned int order) __assume_page_alignment __malloc;
+extern void *kmalloc_order(size_t size, gfp_t flags, unsigned int order) __assume_page_alignment
+ __malloc;

#ifdef CONFIG_TRACING
-extern void *kmalloc_order_trace(size_t size, gfp_t flags, unsigned int order) __assume_page_alignment __malloc;
+extern void *kmalloc_order_trace(size_t size, gfp_t flags, unsigned int order)
+ __assume_page_alignment __malloc;
#else
-static __always_inline void *
-kmalloc_order_trace(size_t size, gfp_t flags, unsigned int order)
+static __always_inline void *kmalloc_order_trace(size_t size, gfp_t flags, unsigned int order)
{
return kmalloc_order(size, flags, order);
}
@@ -638,8 +637,8 @@ static inline void *kmalloc_array(size_t
* @new_size: new size of a single member of the array
* @flags: the type of memory to allocate (see kmalloc)
*/
-static __must_check inline void *
-krealloc_array(void *p, size_t new_n, size_t new_size, gfp_t flags)
+static inline void * __must_check krealloc_array(void *p, size_t new_n, size_t new_size,
+ gfp_t flags)
{
size_t bytes;

@@ -668,7 +667,7 @@ static inline void *kcalloc(size_t n, si
* allocator where we care about the real place the memory allocation
* request comes from.
*/
-extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long);
+extern void *__kmalloc_track_caller(size_t size, gfp_t flags, unsigned long caller);
#define kmalloc_track_caller(size, flags) \
__kmalloc_track_caller(size, flags, _RET_IP_)

@@ -691,7 +690,8 @@ static inline void *kcalloc_node(size_t

#ifdef CONFIG_NUMA
-extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, unsigned long);
+extern void *__kmalloc_node_track_caller(size_t size, gfp_t flags, int node,
+ unsigned long caller);
#define kmalloc_node_track_caller(size, flags, node) \
__kmalloc_node_track_caller(size, flags, node, \
_RET_IP_)
_