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firmware: dmi_scan: Optimize dmi_save_extended_devices

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Calling dmi_string_nosave isn't cheap, so avoid calling it twice in a
row for the same string.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Jordan Hargrave <jordan_hargrave@dell.com>
Cc: Narendra K <narendra_k@dell.com>
This commit is contained in:
Jean Delvare 2016-01-15 22:08:44 +01:00
parent afd2ff9b7e
commit 96e239434c
1 changed files with 4 additions and 2 deletions
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6
drivers/firmware/dmi_scan.c
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@ -345,15 +345,17 @@ static void __init dmi_save_dev_onboard(int instance, int segment, int bus,
static void __init dmi_save_extended_devices(const struct dmi_header *dm)
{
const char *name;
const u8 *d = (u8 *) dm + 5;
/* Skip disabled device */
if ((*d & 0x80) == 0)
return;
name = dmi_string_nosave(dm, *(d - 1));
dmi_save_dev_onboard(*(d+1), *(u16 *)(d+2), *(d+4), *(d+5),
dmi_string_nosave(dm, *(d-1)));
dmi_save_one_device(*d & 0x7f, dmi_string_nosave(dm, *(d - 1)));
name);
dmi_save_one_device(*d & 0x7f, name);
}
static void __init count_mem_devices(const struct dmi_header *dm, void *v)