Thread (3 messages) flat view 3 messages, 2 authors, 2021-09-21

Re: [PATCH] octeontx2-af: fix uninitialized variable

From: Nick Desaulniers <ndesaulniers@google.com>
Date: 2021-09-21 02:05:35
Also in: lkml, llvm

On Mon, Sep 20, 2021 at 9:54 AM [off-list ref] wrote:
From: Tom Rix <trix@redhat.com>

Building with clang 13 reports this error
rvu_nix.c:4600:7: error: variable 'val' is used uninitialized whenever
  'if' condition is false
                if (!is_rvu_otx2(rvu))
                    ^~~~~~~~~~~~~~~~~

So initialize val.

Fixes: 4b5a3ab17c6c ("octeontx2-af: Hardware configuration for inline IPsec")
Signed-off-by: Tom Rix <trix@redhat.com>
Thanks for the patch, but it looks like Colin beat you to the punch.
In linux-next, I see:
commit d853f1d3c900 ("octeontx2-af: Fix uninitialized variable val")
quoted hunk ↗ jump to hunk
---
 drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index ea3e03fa55d45c..70431db866b328 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -4592,7 +4592,7 @@ static void nix_inline_ipsec_cfg(struct rvu *rvu, struct nix_inline_ipsec_cfg *r
                                 int blkaddr)
 {
        u8 cpt_idx, cpt_blkaddr;
-       u64 val;
+       u64 val = 0;

        cpt_idx = (blkaddr == BLKADDR_NIX0) ? 0 : 1;
        if (req->enable) {
--
2.26.3

-- 
Thanks,
~Nick Desaulniers
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