treewide: Use sizeof_field() macro

Replace all the occurrences of FIELD_SIZEOF() with sizeof_field() except
at places where these are defined. Later patches will remove the unused
definition of FIELD_SIZEOF().

This patch is generated using following script:

EXCLUDE_FILES="include/linux/stddef.h|include/linux/kernel.h"

git grep -l -e "\bFIELD_SIZEOF\b" | while read file;
do

	if [[ "$file" =~ $EXCLUDE_FILES ]]; then
		continue
	fi
	sed -i  -e 's/\bFIELD_SIZEOF\b/sizeof_field/g' $file;
done

Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
Link: https://lore.kernel.org/r/20190924105839.110713-3-pankaj.laxminarayan.bharadiya@intel.com
Co-developed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: David Miller <davem@davemloft.net> # for net

2 files changed, 3 insertions, 3 deletions

diff --git a/kernel/bpf/cgroup.c b/kernel/bpf/cgroup.c
index 9f90d3c92bda..4fb20ab179fe 100644
--- a/kernel/bpf/cgroup.c
+++ b/kernel/bpf/cgroup.c
@@ -1341,7 +1341,7 @@ static u32 sysctl_convert_ctx_access(enum bpf_access_type type,
 		*insn++ = BPF_LDX_MEM(
 			BPF_SIZE(si->code), si->dst_reg, si->src_reg,
 			bpf_target_off(struct bpf_sysctl_kern, write,
-				       FIELD_SIZEOF(struct bpf_sysctl_kern,
+				       sizeof_field(struct bpf_sysctl_kern,
 						    write),
 				       target_size));
 		break;
diff --git a/kernel/bpf/local_storage.c b/kernel/bpf/local_storage.c
index 2ba750725cb2..6bd22f6d9f41 100644
--- a/kernel/bpf/local_storage.c
+++ b/kernel/bpf/local_storage.c
@@ -357,7 +357,7 @@ static int cgroup_storage_check_btf(const struct bpf_map *map,
 	 * The first field must be a 64 bit integer at 0 offset.
 	 */
 	m = (struct btf_member *)(key_type + 1);
-	size = FIELD_SIZEOF(struct bpf_cgroup_storage_key, cgroup_inode_id);
+	size = sizeof_field(struct bpf_cgroup_storage_key, cgroup_inode_id);
 	if (!btf_member_is_reg_int(btf, key_type, m, 0, size))
 		return -EINVAL;
 
@@ -366,7 +366,7 @@ static int cgroup_storage_check_btf(const struct bpf_map *map,
 	 */
 	m++;
 	offset = offsetof(struct bpf_cgroup_storage_key, attach_type);
-	size = FIELD_SIZEOF(struct bpf_cgroup_storage_key, attach_type);
+	size = sizeof_field(struct bpf_cgroup_storage_key, attach_type);
 	if (!btf_member_is_reg_int(btf, key_type, m, offset, size))
 		return -EINVAL;