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Commit a9930fd2 authored by Sonic Zhang's avatar Sonic Zhang Committed by Mike Frysinger
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Blackfin: kgdb_test: rework code to avoid -O0 usage 



__kfree_rcu() in rcupdate.h bugs when parameter offset is not a constant
at compile time.  Since we build the kgdb_test module with -O0 and it
includes this header file, we hit the bug.  So drop the -O0 and mark the
one func we need for the test as noinline (so we can set a breakpoint on
it and have it be hit).

Signed-off-by: default avatarSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
parent c91e09b6

arch/blackfin/kernel/Makefile

+1 −1
Original line number Original line Diff line number Diff line
@@ -38,6 +38,6 @@ obj-$(CONFIG_PERF_EVENTS) += perf_event.o 




# the kgdb test puts code into L2 and without linker

# the kgdb test puts code into L2 and without linker

# relaxation, we need to force long calls to/from it

# relaxation, we need to force long calls to/from it

CFLAGS_kgdb_test.o := -mlong-calls -O0

CFLAGS_kgdb_test.o := -mlong-calls





obj-$(CONFIG_DEBUG_MMRS)             += debug-mmrs.o
 
obj-$(CONFIG_DEBUG_MMRS)             += debug-mmrs.o

arch/blackfin/kernel/kgdb_test.c

+1 −2
Original line number Original line Diff line number Diff line
@@ -50,8 +50,7 @@ void kgdb_l2_test(void) 




#endif

#endif







noinline int kgdb_test(char *name, int len, int count, int z)

int kgdb_test(char *name, int len, int count, int z)

{

{

	pr_alert("kgdb name(%d): %s, %d, %d\n", len, name, count, z);

	pr_alert("kgdb name(%d): %s, %d, %d\n", len, name, count, z);

	count = z;

	count = z;