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    SubjectRe: [PATCH 3.2 068/221] firmware: dmi_scan: Fix dmi_len type
    Hi Ben,

    There is no need in this patch for 3.2, only beginning from 3.19.
    SMBIOSv3 is absent in k3.2, and for previous SMBIOS versions 16-bit dmi len
    is enough. It should had been mentioned in the commit/code, sorry.

    On 05.05.15 04:16, Ben Hutchings wrote:
    > 3.2.69-rc1 review patch. If anyone has any objections, please let me know.
    >
    > ------------------
    >
    > From: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
    >
    > commit 6d9ff473317245e3e5cd9922b4520411c2296388 upstream.
    >
    > According to SMBIOSv3 specification the length of DMI table can be
    > up to 32bits wide. So use appropriate type to avoid overflow.
    >
    > It's obvious that dmi_num theoretically can be more than u16 also,
    > so it's can be changed to u32 or at least it's better to use int
    > instead of u16, but on that moment I cannot imagine dmi structure
    > count more than 65535 and it can require changing type of vars that
    > work with it. So I didn't correct it.
    >
    > Acked-by: Ard Biesheuvel <ard@linaro.org>
    > Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
    > Signed-off-by: Matt Fleming <matt.fleming@intel.com>
    > [bwh: Backported to 3.2: adjust context]
    > Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
    > ---
    > drivers/firmware/dmi_scan.c | 4 ++--
    > 1 file changed, 2 insertions(+), 2 deletions(-)
    >
    > --- a/drivers/firmware/dmi_scan.c
    > +++ b/drivers/firmware/dmi_scan.c
    > @@ -69,7 +69,7 @@ static char * __init dmi_string(const st
    > * We have to be cautious here. We have seen BIOSes with DMI pointers
    > * pointing to completely the wrong place for example
    > */
    > -static void dmi_table(u8 *buf, int len, int num,
    > +static void dmi_table(u8 *buf, u32 len, int num,
    > void (*decode)(const struct dmi_header *, void *),
    > void *private_data)
    > {
    > @@ -99,7 +99,7 @@ static void dmi_table(u8 *buf, int len,
    > }
    >
    > static u32 dmi_base;
    > -static u16 dmi_len;
    > +static u32 dmi_len;
    > static u16 dmi_num;
    >
    > static int __init dmi_walk_early(void (*decode)(const struct dmi_header *,
    >
    > --
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    --
    Regards,
    Ivan Khoronzhuk



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