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flexible-array member convertion patches for 5.7-rc5

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Hi Linus,
 
 Please, pull the following patch that reverts changes in include/uapi/
 
 These structures can get embedded in other structures in user-space
 and cause all sorts of warnings and problems[1]. So, we better don't take
 any chances and keep the zero-length arrays in place for now.
 
 [1] https://lore.kernel.org/lkml/20200424121553.GE26002@ziepe.ca/
 
 Thanks
 --
 Gustavo
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Merge tag 'flexible-array-member-5.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux

Pull flex-array reverts from Gustavo Silva:
 "This reverts flexible array changes in include/uapi/

  These structures can get embedded in other structures in user-space
  and cause all sorts of warnings and problems[1]. So, we better don't
  take any chances and keep the zero-length arrays in place for now"

[1] https://lore.kernel.org/lkml/20200424121553.GE26002@ziepe.ca/

* tag 'flexible-array-member-5.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
  uapi: revert flexible-array conversions
This commit is contained in:
Linus Torvalds 2020-05-04 10:47:41 -07:00
commit 67f852ef92
8 changed files with 12 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/uapi/linux/bpf.h
View File

@ -73,7 +73,7 @@ struct bpf_insn {
/* Key of an a BPF_MAP_TYPE_LPM_TRIE entry */
struct bpf_lpm_trie_key {
__u32 prefixlen; /* up to 32 for AF_INET, 128 for AF_INET6 */
__u8 data[]; /* Arbitrary size */
__u8 data[0]; /* Arbitrary size */
};
struct bpf_cgroup_storage_key {

4
include/uapi/linux/dlm_device.h
View File

@ -45,13 +45,13 @@ struct dlm_lock_params {
void __user *bastaddr;
struct dlm_lksb __user *lksb;
char lvb[DLM_USER_LVB_LEN];
char name[];
char name[0];
};
struct dlm_lspace_params {
__u32 flags;
__u32 minor;
char name[];
char name[0];
};
struct dlm_purge_params {

2
include/uapi/linux/fiemap.h
View File

@ -34,7 +34,7 @@ struct fiemap {
__u32 fm_mapped_extents;/* number of extents that were mapped (out) */
__u32 fm_extent_count; /* size of fm_extents array (in) */
__u32 fm_reserved;
struct fiemap_extent fm_extents[]; /* array of mapped extents (out) */
struct fiemap_extent fm_extents[0]; /* array of mapped extents (out) */
};
#define FIEMAP_MAX_OFFSET (~0ULL)

6
include/uapi/linux/if_arcnet.h
View File

@ -60,7 +60,7 @@ struct arc_rfc1201 {
__u8 proto; /* protocol ID field - varies */
__u8 split_flag; /* for use with split packets */
__be16 sequence; /* sequence number */
__u8 payload[]; /* space remaining in packet (504 bytes)*/
__u8 payload[0]; /* space remaining in packet (504 bytes)*/
};
#define RFC1201_HDR_SIZE 4
@ -69,7 +69,7 @@ struct arc_rfc1201 {
*/
struct arc_rfc1051 {
__u8 proto; /* ARC_P_RFC1051_ARP/RFC1051_IP */
__u8 payload[]; /* 507 bytes */
__u8 payload[0]; /* 507 bytes */
};
#define RFC1051_HDR_SIZE 1
@ -80,7 +80,7 @@ struct arc_rfc1051 {
struct arc_eth_encap {
__u8 proto; /* Always ARC_P_ETHER */
struct ethhdr eth; /* standard ethernet header (yuck!) */
__u8 payload[]; /* 493 bytes */
__u8 payload[0]; /* 493 bytes */
};
#define ETH_ENCAP_HDR_SIZE 14

2
include/uapi/linux/mmc/ioctl.h
View File

@ -57,7 +57,7 @@ struct mmc_ioc_cmd {
*/
struct mmc_ioc_multi_cmd {
__u64 num_of_cmds;
struct mmc_ioc_cmd cmds[];
struct mmc_ioc_cmd cmds[0];
};
#define MMC_IOC_CMD _IOWR(MMC_BLOCK_MAJOR, 0, struct mmc_ioc_cmd)

4
include/uapi/linux/net_dropmon.h
View File

@ -29,12 +29,12 @@ struct net_dm_config_entry {
struct net_dm_config_msg {
__u32 entries;
struct net_dm_config_entry options[];
struct net_dm_config_entry options[0];
};
struct net_dm_alert_msg {
__u32 entries;
struct net_dm_drop_point points[];
struct net_dm_drop_point points[0];
};
struct net_dm_user_msg {

2
include/uapi/linux/netfilter_bridge/ebt_among.h
View File

@ -40,7 +40,7 @@ struct ebt_mac_wormhash_tuple {
struct ebt_mac_wormhash {
int table[257];
int poolsize;
struct ebt_mac_wormhash_tuple pool[];
struct ebt_mac_wormhash_tuple pool[0];
};
#define ebt_mac_wormhash_size(x) ((x) ? sizeof(struct ebt_mac_wormhash) \

2
include/uapi/scsi/scsi_bsg_fc.h
View File

@ -209,7 +209,7 @@ struct fc_bsg_host_vendor {
__u64 vendor_id;
/* start of vendor command area */
__u32 vendor_cmd[];
__u32 vendor_cmd[0];
};
/* Response: