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| author | Arnd Bergmann <arnd@arndb.de> | 2019-02-19 22:53:50 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-02-21 16:23:56 -0800 |
| commit | 6321aa197547da397753757bd84c6ce64b3e3d89 (patch) | |
| tree | 74697a2e39836b2675d3998b2e7d071d001f381f /include/net | |
| parent | b35560e485cb3a10bfe631732bcb75fe1a568da7 (diff) | |
| download | linux-6321aa197547da397753757bd84c6ce64b3e3d89.tar.bz2 | |
phonet: fix building with clang
clang warns about overflowing the data[] member in the struct pnpipehdr:
net/phonet/pep.c:295:8: warning: array index 4 is past the end of the array (which contains 1 element) [-Warray-bounds]
if (hdr->data[4] == PEP_IND_READY)
^ ~
include/net/phonet/pep.h:66:3: note: array 'data' declared here
u8 data[1];
Using a flexible array member at the end of the struct avoids the
warning, but since we cannot have a flexible array member inside
of the union, each index now has to be moved back by one, which
makes it a little uglier.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Rémi Denis-Courmont <remi@remlab.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/phonet/pep.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/net/phonet/pep.h b/include/net/phonet/pep.h index b669fe6dbc3b..98f31c7ea23d 100644 --- a/include/net/phonet/pep.h +++ b/include/net/phonet/pep.h @@ -63,10 +63,11 @@ struct pnpipehdr { u8 state_after_reset; /* reset request */ u8 error_code; /* any response */ u8 pep_type; /* status indication */ - u8 data[1]; + u8 data0; /* anything else */ }; + u8 data[]; }; -#define other_pep_type data[1] +#define other_pep_type data[0] static inline struct pnpipehdr *pnp_hdr(struct sk_buff *skb) { |