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author | Marc-André Lureau <marcandre.lureau@redhat.com> | 2018-02-28 16:06:06 +0100 |
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committer | Michael S. Tsirkin <mst@redhat.com> | 2018-03-20 02:17:38 +0100 |
commit | d174ea7d38bccb6a10aca036014ec74ea8f73d1c (patch) | |
tree | e534aaa7d3ef9b6324948c667ef44d7b32acdadc /drivers/firmware/qemu_fw_cfg.c | |
parent | fw_cfg: fix sparse warnings in fw_cfg_sel_endianness() (diff) | |
download | linux-d174ea7d38bccb6a10aca036014ec74ea8f73d1c.tar.xz linux-d174ea7d38bccb6a10aca036014ec74ea8f73d1c.zip |
fw_cfg: fix sparse warnings with fw_cfg_file
Modify fw_cfg_sysfs_entry to store entry values, instead of reusing
the restricted types.
Fixes warnings such as:
$ make C=1 CF=-D__CHECK_ENDIAN__ drivers/firmware/qemu_fw_cfg.o
drivers/firmware/qemu_fw_cfg.c:491:29: warning: incorrect type in assignment (different base types)
drivers/firmware/qemu_fw_cfg.c:491:29: expected restricted __be32 [usertype] size
drivers/firmware/qemu_fw_cfg.c:491:29: got unsigned int
drivers/firmware/qemu_fw_cfg.c:492:31: warning: incorrect type in assignment (different base types)
drivers/firmware/qemu_fw_cfg.c:492:31: expected restricted __be16 [usertype] select
drivers/firmware/qemu_fw_cfg.c:492:31: got int
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/firmware/qemu_fw_cfg.c')
-rw-r--r-- | drivers/firmware/qemu_fw_cfg.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c index e7ea2b3b1d11..7978844f6b37 100644 --- a/drivers/firmware/qemu_fw_cfg.c +++ b/drivers/firmware/qemu_fw_cfg.c @@ -211,7 +211,9 @@ static const struct { /* fw_cfg_sysfs_entry type */ struct fw_cfg_sysfs_entry { struct kobject kobj; - struct fw_cfg_file f; + u32 size; + u16 select; + char name[FW_CFG_MAX_FILE_PATH]; struct list_head list; }; @@ -275,17 +277,17 @@ struct fw_cfg_sysfs_attribute fw_cfg_sysfs_attr_##_attr = { \ static ssize_t fw_cfg_sysfs_show_size(struct fw_cfg_sysfs_entry *e, char *buf) { - return sprintf(buf, "%u\n", e->f.size); + return sprintf(buf, "%u\n", e->size); } static ssize_t fw_cfg_sysfs_show_key(struct fw_cfg_sysfs_entry *e, char *buf) { - return sprintf(buf, "%u\n", e->f.select); + return sprintf(buf, "%u\n", e->select); } static ssize_t fw_cfg_sysfs_show_name(struct fw_cfg_sysfs_entry *e, char *buf) { - return sprintf(buf, "%s\n", e->f.name); + return sprintf(buf, "%s\n", e->name); } static FW_CFG_SYSFS_ATTR(size); @@ -336,13 +338,13 @@ static ssize_t fw_cfg_sysfs_read_raw(struct file *filp, struct kobject *kobj, { struct fw_cfg_sysfs_entry *entry = to_entry(kobj); - if (pos > entry->f.size) + if (pos > entry->size) return -EINVAL; - if (count > entry->f.size - pos) - count = entry->f.size - pos; + if (count > entry->size - pos) + count = entry->size - pos; - fw_cfg_read_blob(entry->f.select, buf, pos, count); + fw_cfg_read_blob(entry->select, buf, pos, count); return count; } @@ -461,11 +463,13 @@ static int fw_cfg_register_file(const struct fw_cfg_file *f) return -ENOMEM; /* set file entry information */ - memcpy(&entry->f, f, sizeof(struct fw_cfg_file)); + entry->size = be32_to_cpu(f->size); + entry->select = be16_to_cpu(f->select); + memcpy(entry->name, f->name, FW_CFG_MAX_FILE_PATH); /* register entry under "/sys/firmware/qemu_fw_cfg/by_key/" */ err = kobject_init_and_add(&entry->kobj, &fw_cfg_sysfs_entry_ktype, - fw_cfg_sel_ko, "%d", entry->f.select); + fw_cfg_sel_ko, "%d", entry->select); if (err) goto err_register; @@ -475,7 +479,7 @@ static int fw_cfg_register_file(const struct fw_cfg_file *f) goto err_add_raw; /* try adding "/sys/firmware/qemu_fw_cfg/by_name/" symlink */ - fw_cfg_build_symlink(fw_cfg_fname_kset, &entry->kobj, entry->f.name); + fw_cfg_build_symlink(fw_cfg_fname_kset, &entry->kobj, entry->name); /* success, add entry to global cache */ fw_cfg_sysfs_cache_enlist(entry); @@ -507,8 +511,6 @@ static int fw_cfg_register_dir_entries(void) fw_cfg_read_blob(FW_CFG_FILE_DIR, dir, sizeof(count), dir_size); for (i = 0; i < count; i++) { - dir[i].size = be32_to_cpu(dir[i].size); - dir[i].select = be16_to_cpu(dir[i].select); ret = fw_cfg_register_file(&dir[i]); if (ret) break; |