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efi/apple-properties: use PROPERTY_ENTRY_U8_ARRAY_LEN

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Let's switch to using PROPERTY_ENTRY_U8_ARRAY_LEN() to initialize
property entries. Also, when dumping data, rely on local variables
instead of poking into the property entry structure directly.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Dmitry Torokhov 2019-10-23 13:02:21 -07:00 committed by Rafael J. Wysocki
parent 1741cfacfa
commit 4466bf8282
1 changed files with 8 additions and 10 deletions
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18
drivers/firmware/efi/apple-properties.c
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@ -53,7 +53,8 @@ static void __init unmarshal_key_value_pairs(struct dev_header *dev_header,
for (i = 0; i < dev_header->prop_count; i++) {
int remaining = dev_header->len - (ptr - (void *)dev_header);
u32 key_len, val_len;
u32 key_len, val_len, entry_len;
const u8 *entry_data;
char *key;
if (sizeof(key_len) > remaining)
@ -85,17 +86,14 @@ static void __init unmarshal_key_value_pairs(struct dev_header *dev_header,
ucs2_as_utf8(key, ptr + sizeof(key_len),
key_len - sizeof(key_len));
entry[i].name = key;
entry[i].length = val_len - sizeof(val_len);
entry[i].is_array = !!entry[i].length;
entry[i].type = DEV_PROP_U8;
entry[i].pointer.u8_data = ptr + key_len + sizeof(val_len);
entry_data = ptr + key_len + sizeof(val_len);
entry_len = val_len - sizeof(val_len);
entry[i] = PROPERTY_ENTRY_U8_ARRAY_LEN(key, entry_data,
entry_len);
if (dump_properties) {
dev_info(dev, "property: %s\n", entry[i].name);
dev_info(dev, "property: %s\n", key);
print_hex_dump(KERN_INFO, pr_fmt(), DUMP_PREFIX_OFFSET,
16, 1, entry[i].pointer.u8_data,
entry[i].length, true);
16, 1, entry_data, entry_len, true);
}
ptr += key_len + val_len;