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Subject[PATCH] scsi: libosd: Remove VLA usage
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

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:
{
--
2.17.0

--
Kees Cook
Pixel Security

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