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Subjectv2.6.31-7381-g7fa0772: new build warnings: kmemcheck, __deprecated, hugetlb, radeon
Latest git compiles with extreme noise:

In file included from include/net/inet_connection_sock.h:23,
from include/linux/tcp.h:178,
from include/linux/ipv6.h:215,
from include/net/ipv6.h:16,
from include/linux/sunrpc/clnt.h:25,
from include/linux/nfs_fs.h:52,
from kernel/sysctl.c:48:
include/net/inet_sock.h: In function 'inet_reqsk_alloc':
include/net/inet_sock.h:208: warning: ISO C90 forbids mixed declarations
and code

Vegard, this is obviously caused by commit
45e3ff82708c65c895d5c5882aff17ecf62a80b5.

$ grep KMEMCH .config
CONFIG_HAVE_ARCH_KMEMCHECK=y

(I.e. CONFIG_KMEMCHECK is off.)

More kmemcheck bogosity:

CC net/core/skbuff.o
In file included from include/net/ip.h:30,
from include/linux/errqueue.h:27,
from net/core/skbuff.c:59:
include/net/inet_sock.h: In function 'inet_reqsk_alloc':
include/net/inet_sock.h:208: warning: ISO C90 forbids mixed declarations
and code
net/core/skbuff.c: In function '__alloc_skb':
net/core/skbuff.c:205: warning: ISO C90 forbids mixed declarations and code
net/core/skbuff.c:206: warning: ISO C90 forbids mixed declarations and code
net/core/skbuff.c:227: warning: ISO C90 forbids mixed declarations and code
net/core/skbuff.c:228: warning: ISO C90 forbids mixed declarations and code
net/core/skbuff.c: In function 'skb_clone':
net/core/skbuff.c:645: warning: ISO C90 forbids mixed declarations and code
net/core/skbuff.c:646: warning: ISO C90 forbids mixed declarations and code


This one is older:

CC net/ethernet/eth.o
[...kmemcheck noise from inet_sock.h:208, and then...:]
net/ethernet/eth.c: At top level:
net/ethernet/eth.c:402: warning: 'print_mac' is deprecated (declared at
net/ethernet/eth.c:398)
net/ethernet/eth.c:402: warning: 'print_mac' is deprecated (declared at
net/ethernet/eth.c:398)

Obviously added by b5eb0589937eae2d58fca17fa45ed44152e772ed.
Johannes, can't the __deprecated logic be suppressed when print_mac is
used in EXPORT_SYMBOL?


Next one:

CC mm/mmap.o
mm/mmap.c: In function 'do_mmap_pgoff':
mm/mmap.c:953: warning: unused variable 'user'

Eric, this was added by 4e52780d41a741fb4861ae1df2413dd816ec11b1.

$ grep HUGETLB .config
# CONFIG_HUGETLBFS is not set
# CONFIG_HUGETLB_PAGE is not set


Next one:

CC [M] drivers/gpu/drm/radeon/radeon_ttm.o
drivers/gpu/drm/radeon/radeon_ttm.c: In function 'radeon_ttm_debugfs_init':
drivers/gpu/drm/radeon/radeon_ttm.c:714: warning: unused variable 'i'
drivers/gpu/drm/radeon/radeon_ttm.c: At top level:
drivers/gpu/drm/radeon/radeon_ttm.c:692: warning:
'radeon_mem_types_list' defined but not used
drivers/gpu/drm/radeon/radeon_ttm.c:693: warning:
'radeon_mem_types_names' defined but not used

Dave, added by fa8a123855e20068204982596b8fafceb1a67f0b.

$ grep -e RADEON -e DEBUG_FS .config
CONFIG_DRM_RADEON=m
CONFIG_FB_RADEON=y
CONFIG_FB_RADEON_I2C=y
# CONFIG_FB_RADEON_BACKLIGHT is not set
# CONFIG_FB_RADEON_DEBUG is not set
# CONFIG_DEBUG_FS is not set

--
Stefan Richter
-=====-==--= =--= =-==-
http://arcgraph.de/sr/


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