The patch attached should fix the build error. Untested since I do not have GCC
5.4.
Best regards,
Martin
On 07/11/16 08:49, Bjørn Forsman wrote:
> Hi iPXE developers,
>
> I'd like to report a build issue:
>
> $ make -C src
> [...]
> [BUILD] bin/etherfabric.o
> In file included from drivers/net/etherfabric.c:36:0:
> drivers/net/etherfabric.c: In function ‘falcon_init_xmac’:
> drivers/net/etherfabric.h:524:7: error: ‘reg.u32[0]’ may be used
> uninitialized in this function [-Werror=maybe-uninitialized]
> | EFAB_INSERT_FIELD32 ( 0, 31, field, value ) ); \
> ^
> drivers/net/etherfabric.c:2213:15: note: ‘reg.u32[0]’ was declared here
> efab_dword_t reg;
> ^
> cc1: all warnings being treated as errors
> make: *** [Makefile.housekeeping:916: bin/etherfabric.o] Error 1
>
> This is on NixOS with GCC 5.4. Another issue that happens on NixOS is
> that "echo" isn't located in /bin. Could you either lookup "echo" in
> $PATH or use printf? (AFAIK, printf is more portable than echo, see
> http://unix.stackexchange.com/questions/65803/why-is-printf-better-than-echo.)
>
> Best regards,
> Bjørn Forsman
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>
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diff --git a/src/drivers/net/etherfabric.c b/src/drivers/net/etherfabric.c
index 2cd41d4cab51..fa696694639a 100644
--- a/src/drivers/net/etherfabric.c
+++ b/src/drivers/net/etherfabric.c
@@ -2210,7 +2210,7 @@ falcon_reset_xaui ( struct efab_nic *efab )
static int
falcon_xaui_link_ok ( struct efab_nic *efab )
{
- efab_dword_t reg;
+ efab_dword_t reg = { 0 };
int align_done, lane_status, sync;
int has_phyxs;
int link_ok = 1;
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