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SubjectRe: [PATCH] scsi: libosd: Remove VLA usage
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On 03/05/18 01:55, Kees Cook wrote:
> On the quest to remove all VLAs from the kernel[1] this rearranges the
> code to avoid a VLA warning under -Wvla (gcc doesn't recognize "const"
> variables as not triggering VLA creation). Additionally cleans up variable
> naming to avoid 80 character column limit.
>
> [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com
>

ACK-BY: Boaz Harrosh <ooo@electrozaur.com>

> Signed-off-by: Kees Cook <keescook@chromium.org>
> ---
> drivers/scsi/osd/osd_initiator.c | 16 ++++++++--------
> 1 file changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
> index e18877177f1b..917a86a2ae8c 100644
> --- a/drivers/scsi/osd/osd_initiator.c
> +++ b/drivers/scsi/osd/osd_initiator.c
> @@ -1842,14 +1842,14 @@ int osd_req_decode_sense_full(struct osd_request *or,
> case osd_sense_response_integrity_check:
> {
> struct osd_sense_response_integrity_check_descriptor
> - *osricd = cur_descriptor;
> - const unsigned len =
> - sizeof(osricd->integrity_check_value);
> - char key_dump[len*4 + 2]; /* 2nibbles+space+ASCII */
> -
> - hex_dump_to_buffer(osricd->integrity_check_value, len,
> - 32, 1, key_dump, sizeof(key_dump), true);
> - OSD_SENSE_PRINT2("response_integrity [%s]\n", key_dump);
> + *d = cur_descriptor;
> + /* 2nibbles+space+ASCII */
> + char dump[sizeof(d->integrity_check_value) * 4 + 2];
> +
> + hex_dump_to_buffer(d->integrity_check_value,
> + sizeof(d->integrity_check_value),
> + 32, 1, dump, sizeof(dump), true);
> + OSD_SENSE_PRINT2("response_integrity [%s]\n", dump);
> }
> case osd_sense_attribute_identification:
> {
>

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