If a value is not valid during the DT or SYSINFO parsing, we explicitly set that to "Unknown Product" and "Unknown" for the product and manufacturer respectively. It's cleaner if we move the checks insisde smbios_add_string() and always report "Unknown" regardless of the missing field.
pre-patch dmidecode <snip> Handle 0x0001, DMI type 1, 27 bytes System Information Manufacturer: Unknown Product Name: Unknown Product Version: Not Specified Serial Number: Not Specified UUID: Not Settable Wake-up Type: Reserved SKU Number: Not Specified Family: Not Specified
Handle 0x0002, DMI type 2, 14 bytes Base Board Information Manufacturer: Unknown Product Name: Unknown Product Version: Not Specified Serial Number: Not Specified Asset Tag: Not Specified Features: Board is a hosting board Location In Chassis: Not Specified Chassis Handle: 0x0000 Type: Motherboard <snip>
post-patch dmidecode:
Handle 0x0001, DMI type 1, 27 bytes System Information Manufacturer: Unknown Product Name: Unknown Version: Unknown Serial Number: Unknown UUID: Not Settable Wake-up Type: Reserved SKU Number: Unknown Family: Unknown
Handle 0x0002, DMI type 2, 14 bytes Base Board Information Manufacturer: Unknown Product Name: Unknown Version: Unknown Serial Number: Not Specified Asset Tag: Unknown Features: Board is a hosting board Location In Chassis: Not Specified Chassis Handle: 0x0000 Type: Motherboard
Signed-off-by: Ilias Apalodimas ilias.apalodimas@linaro.org --- lib/smbios.c | 17 +++-------------- 1 file changed, 3 insertions(+), 14 deletions(-)
diff --git a/lib/smbios.c b/lib/smbios.c index d7f4999e8b2a..fcc8686993ef 100644 --- a/lib/smbios.c +++ b/lib/smbios.c @@ -102,7 +102,7 @@ static int smbios_add_string(struct smbios_ctx *ctx, const char *str) int i = 1; char *p = ctx->eos;
- if (!*str) + if (!str || !*str) str = "Unknown";
for (;;) { @@ -151,8 +151,7 @@ static int smbios_add_prop_si(struct smbios_ctx *ctx, const char *prop, const char *str;
str = ofnode_read_string(ctx->node, prop); - if (str) - return smbios_add_string(ctx, str); + return smbios_add_string(ctx, str); }
return 0; @@ -231,7 +230,7 @@ static int smbios_write_type0(ulong *current, int handle, t->vendor = smbios_add_string(ctx, "U-Boot");
t->bios_ver = smbios_add_prop(ctx, "version"); - if (!t->bios_ver) + if (!strcmp(ctx->last_str, "Unknown")) t->bios_ver = smbios_add_string(ctx, PLAIN_VERSION); if (t->bios_ver) gd->smbios_version = ctx->last_str; @@ -281,11 +280,7 @@ static int smbios_write_type1(ulong *current, int handle, fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle); smbios_set_eos(ctx, t->eos); t->manufacturer = smbios_add_prop(ctx, "manufacturer"); - if (!t->manufacturer) - t->manufacturer = smbios_add_string(ctx, "Unknown"); t->product_name = smbios_add_prop(ctx, "product"); - if (!t->product_name) - t->product_name = smbios_add_string(ctx, "Unknown Product"); t->version = smbios_add_prop_si(ctx, "version", SYSINFO_ID_SMBIOS_SYSTEM_VERSION); if (serial_str) { @@ -315,11 +310,7 @@ static int smbios_write_type2(ulong *current, int handle, fill_smbios_header(t, SMBIOS_BOARD_INFORMATION, len, handle); smbios_set_eos(ctx, t->eos); t->manufacturer = smbios_add_prop(ctx, "manufacturer"); - if (!t->manufacturer) - t->manufacturer = smbios_add_string(ctx, "Unknown"); t->product_name = smbios_add_prop(ctx, "product"); - if (!t->product_name) - t->product_name = smbios_add_string(ctx, "Unknown Product"); t->version = smbios_add_prop_si(ctx, "version", SYSINFO_ID_SMBIOS_BASEBOARD_VERSION); t->asset_tag_number = smbios_add_prop(ctx, "asset-tag"); @@ -344,8 +335,6 @@ static int smbios_write_type3(ulong *current, int handle, fill_smbios_header(t, SMBIOS_SYSTEM_ENCLOSURE, len, handle); smbios_set_eos(ctx, t->eos); t->manufacturer = smbios_add_prop(ctx, "manufacturer"); - if (!t->manufacturer) - t->manufacturer = smbios_add_string(ctx, "Unknown"); t->chassis_type = SMBIOS_ENCLOSURE_DESKTOP; t->bootup_state = SMBIOS_STATE_SAFE; t->power_supply_state = SMBIOS_STATE_SAFE;