The patch titled drivers/firmware/dmi_scan.c: make dmi_name_in_vendors more focused has been added to the -mm tree. Its filename is drivers-firmware-dmi_scanc-make-dmi_name_in_vendors-more-focused.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: drivers/firmware/dmi_scan.c: make dmi_name_in_vendors more focused From: Jean Delvare <khali@xxxxxxxxxxxx> The current implementation of dmi_name_in_vendors() is an invitation to lazy coding and false positives [1]. Searching for a string in 8 know what you're looking for, so you should know where to look. strstr isn't fast, especially when it fails, so we should avoid calling it when it just can't succeed. Looking at the current users of the function, it seems clear to me that they are looking for a system or board vendor name, so let's limit dmi_name_in_vendors to these two DMI fields. This much better matches the function name, BTW. [1] We currently have code looking for short names in DMI data, such as "IBM", "ASUS" or "Acer". I let you guess what will happen the day other vendors ship products named, for example, "SCHREIBMEISTER", "PEGASUS" or "Acerola". Signed-off-by: Jean Delvare <khali@xxxxxxxxxxxx> Cc: Andi Kleen <andi@xxxxxxxxxxxxxx> Cc: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/firmware/dmi_scan.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff -puN drivers/firmware/dmi_scan.c~drivers-firmware-dmi_scanc-make-dmi_name_in_vendors-more-focused drivers/firmware/dmi_scan.c --- a/drivers/firmware/dmi_scan.c~drivers-firmware-dmi_scanc-make-dmi_name_in_vendors-more-focused +++ a/drivers/firmware/dmi_scan.c @@ -585,14 +585,12 @@ int dmi_name_in_serial(const char *str) } /** - * dmi_name_in_vendors - Check if string is anywhere in the DMI vendor information. + * dmi_name_in_vendors - Check if string is in the DMI system or board vendor name * @str: Case sensitive Name */ int dmi_name_in_vendors(const char *str) { - static int fields[] = { DMI_BIOS_VENDOR, DMI_BIOS_VERSION, DMI_SYS_VENDOR, - DMI_PRODUCT_NAME, DMI_PRODUCT_VERSION, DMI_BOARD_VENDOR, - DMI_BOARD_NAME, DMI_BOARD_VERSION, DMI_NONE }; + static int fields[] = { DMI_SYS_VENDOR, DMI_BOARD_VENDOR, DMI_NONE }; int i; for (i = 0; fields[i] != DMI_NONE; i++) { int f = fields[i]; _ Patches currently in -mm which might be from khali@xxxxxxxxxxxx are linux-next.patch pci-dont-use-dmi_name_in_vendors-in-quirk.patch drivers-firmware-dmi_scanc-make-dmi_name_in_vendors-more-focused.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html