[Xen-devel] new compile error in gx_comm.c in xen-unstable

[Olaf Hering <olaf@xxxxxxxxx>]

Hello,

there is a regression between xen-unstable rev 22314 and 22344,
gx_comm.c does not compile anymore due to -Werror, see below.
I think a simpe 'if (write(args..)) perror("write");' will be good enough.

Olaf

gcc  -fmessage-length=0 -O2 -Wall -D_FORTIFY_SOURCE=2  -funwind-tables 
-fasynchronous-unwind-tables -O1 -fno-omit-frame-pointer 
-fno-optimize-sibling-calls -m64 -g -fno-strict-aliasing -std=gnu99 
-Wall -Wstrict-prototypes -Wno-unused-value 
-Wdeclaration-after-statement  -O1 -fno-omit-frame-pointer 
-fno-optimize-sibling-calls -m64 -g -fno-strict-aliasing -std=gnu99 
-Wall -Wstrict-prototypes -Wno-unused-value 
-Wdeclaration-after-statement  -O1 -fno-omit-frame-pointer 
-fno-optimize-sibling-calls -m64 -g -fno-strict-aliasing -std=gnu99 
-Wall -Wstrict-prototypes -Wno-unused-value 
-Wdeclaration-after-statement  -D__XEN_TOOLS__ -MMD -MF 
.subdirs-install.d  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE  -O1 
-fno-omit-frame-pointer -fno-optimize-sibling-calls -m64 -g 
-fno-strict-aliasing -std=gnu99 -Wall -Wstrict-prototypes 
-Wno-unused-value -Wdeclaration-after-statement  -D__XEN_TOOLS__ -MMD 
-MF .gdbsx.d  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE  -O1 
-fno-omit-frame-pointer -fno-optimize-sibling-calls -m64 -g 
-fno-strict-aliasing -std=gnu99 -Wall -Wstrict-prototypes 
-Wno-unused-value -Wdeclaration-after-statement  -D__XEN_TOOLS__ -MMD 
-MF .all.d  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE  -Werror 
-Wmissing-prototypes  -O1 -fno-omit-frame-pointer 
-fno-optimize-sibling-calls -m64 -g -fno-strict-aliasing -std=gnu99 
-Wall -Wstrict-prototypes -Wno-unused-value 
-Wdeclaration-after-statement  -D__XEN_TOOLS__ -MMD -MF .gx_comm.o.d  
-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE  -Werror -Wmissing-prototypes 
 -c -o gx_comm.o gx_comm.c
cc1: warnings being treated as errors
gx_comm.c: In function 'gx_getpkt':
gx_comm.c:230: error: ignoring return value of 'write', declared with attribute 
warn_unused_result
gx_comm.c:236: error: ignoring return value of 'write', declared with attribute 
warn_unused_result


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