From 496bd1555da13e66087bf02ff2386c579e894e7d Mon Sep 17 00:00:00 2001 From: Johnny Lin Date: Thu, 23 Apr 2020 09:49:35 +0800 Subject: drivers/ipmi: Add function read_data_string() to make code cleaner Tested on OCP Tioga Pass. Signed-off-by: Johnny Lin Change-Id: I1da8abaa682af802e5cda65e5021069daf4ee717 Reviewed-on: https://review.coreboot.org/c/coreboot/+/40621 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Rudolph Reviewed-by: Jonathan Zhang --- src/drivers/ipmi/ipmi_fru.c | 177 +++++++++++++------------------------------- 1 file changed, 53 insertions(+), 124 deletions(-) (limited to 'src/drivers/ipmi') diff --git a/src/drivers/ipmi/ipmi_fru.c b/src/drivers/ipmi/ipmi_fru.c index 572c41574c..506e2079ef 100644 --- a/src/drivers/ipmi/ipmi_fru.c +++ b/src/drivers/ipmi/ipmi_fru.c @@ -91,6 +91,35 @@ static uint8_t data2str(const uint8_t *frudata, char *stringdata, uint8_t length return length; } +/* + * Read data string from data_ptr and store it to string, return the + * length of the string or 0 when it's failed. + */ +static int read_data_string(const uint8_t *data_ptr, char **string) +{ + uint8_t length; + + length = NUM_DATA_BYTES(data_ptr[0]); + if (length == 0) { + printk(BIOS_DEBUG, "%s:%d - failed due to length is zero\n", __func__, + __LINE__); + return 0; + } + + *string = malloc(length + 1); + if (!*string) { + printk(BIOS_ERR, "%s failed to malloc %d bytes for string data.\n", __func__, + length + 1); + return 0; + } + if (!data2str((const uint8_t *)data_ptr, *string, length)) { + printk(BIOS_ERR, "%s:%d - data2str failed\n", __func__, __LINE__); + free(*string); + return 0; + } + + return length; +} static void read_fru_board_info_area(const int port, const uint8_t id, uint8_t offset, struct fru_board_info *info) { @@ -127,61 +156,21 @@ static void read_fru_board_info_area(const int port, const uint8_t id, printk(BIOS_ERR, "Bad FRU board info checksum.\n"); goto out; } - /* Read manufacturer string, bit[5:0] is the string length. */ - length = NUM_DATA_BYTES(data_ptr[BOARD_MAN_TYPE_LEN_OFFSET]); - data_ptr += BOARD_MAN_TYPE_LEN_OFFSET; - if (length > 0) { - info->manufacturer = malloc(length + 1); - if (!info->manufacturer) { - printk(BIOS_ERR, "%s failed to malloc %d bytes for " - "manufacturer.\n", __func__, length + 1); - goto out; - } - if (!data2str((const uint8_t *)data_ptr, info->manufacturer, length)) - free(info->manufacturer); - } + printk(BIOS_DEBUG, "Read board manufacturer string\n"); + length = read_data_string(data_ptr + BOARD_MAN_TYPE_LEN_OFFSET, + &info->manufacturer); - /* Read product name string. */ - data_ptr += length + 1; - length = NUM_DATA_BYTES(data_ptr[0]); - if (length > 0) { - info->product_name = malloc(length+1); - if (!info->product_name) { - printk(BIOS_ERR, "%s failed to malloc %d bytes for " - "product_name.\n", __func__, length + 1); - goto out; - } - if (!data2str((const uint8_t *)data_ptr, info->product_name, length)) - free(info->product_name); - } + printk(BIOS_DEBUG, "Read board product name string.\n"); + data_ptr += BOARD_MAN_TYPE_LEN_OFFSET + length + 1; + length = read_data_string(data_ptr, &info->product_name); - /* Read serial number string. */ + printk(BIOS_DEBUG, "Read board serial number string.\n"); data_ptr += length + 1; - length = NUM_DATA_BYTES(data_ptr[0]); - if (length > 0) { - info->serial_number = malloc(length + 1); - if (!info->serial_number) { - printk(BIOS_ERR, "%s failed to malloc %d bytes for " - "serial_number.\n", __func__, length + 1); - goto out; - } - if (!data2str((const uint8_t *)data_ptr, info->serial_number, length)) - free(info->serial_number); - } + length = read_data_string(data_ptr, &info->serial_number); - /* Read part number string. */ + printk(BIOS_DEBUG, "Read board part number string.\n"); data_ptr += length + 1; - length = NUM_DATA_BYTES(data_ptr[0]); - if (length > 0) { - info->part_number = malloc(length + 1); - if (!info->part_number) { - printk(BIOS_ERR, "%s failed to malloc %d bytes for " - "part_number.\n", __func__, length + 1); - goto out; - } - if (!data2str((const uint8_t *)data_ptr, info->part_number, length)) - free(info->part_number); - } + length = read_data_string(data_ptr, &info->part_number); out: free(data_ptr); @@ -224,89 +213,29 @@ static void read_fru_product_info_area(const int port, const uint8_t id, printk(BIOS_ERR, "Bad FRU product info checksum.\n"); goto out; } - /* Read manufacturer string, bit[5:0] is the string length. */ - length = NUM_DATA_BYTES(data_ptr[PRODUCT_MAN_TYPE_LEN_OFFSET]); - data_ptr += PRODUCT_MAN_TYPE_LEN_OFFSET; - if (length > 0) { - info->manufacturer = malloc(length + 1); - if (!info->manufacturer) { - printk(BIOS_ERR, "%s failed to malloc %d bytes for " - "manufacturer.\n", __func__, length + 1); - goto out; - } - if (!data2str((const uint8_t *)data_ptr, info->manufacturer, length)) - free(info->manufacturer); - } + printk(BIOS_DEBUG, "Read product manufacturer string.\n"); + length = read_data_string(data_ptr + PRODUCT_MAN_TYPE_LEN_OFFSET, + &info->manufacturer); - /* Read product_name string. */ - data_ptr += length + 1; - length = NUM_DATA_BYTES(data_ptr[0]); - if (length > 0) { - info->product_name = malloc(length + 1); - if (!info->product_name) { - printk(BIOS_ERR, "%s failed to malloc %d bytes for " - "product_name.\n", __func__, length + 1); - goto out; - } - if (!data2str((const uint8_t *)data_ptr, info->product_name, length)) - free(info->product_name); - } + data_ptr += PRODUCT_MAN_TYPE_LEN_OFFSET + length + 1; + printk(BIOS_DEBUG, "Read product_name string.\n"); + length = read_data_string(data_ptr, &info->product_name); - /* Read product part/model number. */ data_ptr += length + 1; - length = NUM_DATA_BYTES(data_ptr[0]); - if (length > 0) { - info->product_partnumber = malloc(length + 1); - if (!info->product_partnumber) { - printk(BIOS_ERR, "%s failed to malloc %d bytes for " - "product_partnumber.\n", __func__, length + 1); - goto out; - } - if (!data2str((const uint8_t *)data_ptr, info->product_partnumber, length)) - free(info->product_partnumber); - } + printk(BIOS_DEBUG, "Read product part/model number.\n"); + length = read_data_string(data_ptr, &info->product_partnumber); - /* Read product version string. */ data_ptr += length + 1; - length = NUM_DATA_BYTES(data_ptr[0]); - if (length > 0) { - info->product_version = malloc(length + 1); - if (!info->product_version) { - printk(BIOS_ERR, "%s failed to malloc %d bytes for " - "product_version.\n", __func__, length + 1); - goto out; - } - if (!data2str((const uint8_t *)data_ptr, info->product_version, length)) - free(info->product_version); - } + printk(BIOS_DEBUG, "Read product version string.\n"); + length = read_data_string(data_ptr, &info->product_version); - /* Read serial number string. */ data_ptr += length + 1; - length = NUM_DATA_BYTES(data_ptr[0]); - if (length > 0) { - info->serial_number = malloc(length + 1); - if (!info->serial_number) { - printk(BIOS_ERR, "%s failed to malloc %d bytes for " - "serial_number.\n", __func__, length + 1); - goto out; - } - if (!data2str((const uint8_t *)data_ptr, info->serial_number, length)) - free(info->serial_number); - } + printk(BIOS_DEBUG, "Read serial number string.\n"); + length = read_data_string(data_ptr, &info->serial_number); - /* Read asset tag string. */ data_ptr += length + 1; - length = NUM_DATA_BYTES(data_ptr[0]); - if (length > 0) { - info->asset_tag = malloc(length + 1); - if (!info->asset_tag) { - printk(BIOS_ERR, "%s failed to malloc %d bytes for " - "asset_tag.\n", __func__, length + 1); - goto out; - } - if (!data2str((const uint8_t *)data_ptr, info->asset_tag, length)) - free(info->asset_tag); - } + printk(BIOS_DEBUG, "Read asset tag string.\n"); + length = read_data_string(data_ptr, &info->asset_tag); out: free(data_ptr); -- cgit v1.2.3