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[Qemu-devel] [PATCH v2 3/4] qed: Report error for unsupported features
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PATCH v2 3/4] qed: Report error for unsupported features |
Date: |
Thu, 10 Feb 2011 12:18:22 +0100 |
Instead of just returning -ENOTSUP, generate a more detailed error.
Unfortunately we don't have a helpful text for features that we don't know yet,
so just print the feature mask. It might be useful at least if someone asks for
help.
Signed-off-by: Kevin Wolf <address@hidden>
---
block/qed.c | 9 ++++++++-
1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/block/qed.c b/block/qed.c
index 3273448..75ae244 100644
--- a/block/qed.c
+++ b/block/qed.c
@@ -14,6 +14,7 @@
#include "trace.h"
#include "qed.h"
+#include "qerror.h"
static void qed_aio_cancel(BlockDriverAIOCB *blockacb)
{
@@ -311,7 +312,13 @@ static int bdrv_qed_open(BlockDriverState *bs, int flags)
return -EINVAL;
}
if (s->header.features & ~QED_FEATURE_MASK) {
- return -ENOTSUP; /* image uses unsupported feature bits */
+ /* image uses unsupported feature bits */
+ char buf[64];
+ snprintf(buf, sizeof(buf), "%" PRIx64,
+ s->header.features & ~QED_FEATURE_MASK);
+ qerror_report(QERR_UNKNOWN_BLOCK_FORMAT_FEATURE,
+ bs->device_name, "QED", buf);
+ return -ENOTSUP;
}
if (!qed_is_cluster_size_valid(s->header.cluster_size)) {
return -EINVAL;
--
1.7.2.3