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authorRussell King <rmk+kernel@arm.linux.org.uk>2012-08-29 11:16:59 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-08-29 11:18:17 +0100
commit9fc31ddc70ac594b5a1d8a83303b65008221088c (patch)
treee47262d37cef78d589cfbcff3a7a725c94a888f3 /arch/arm/kernel
parent895576427dca617d0b1cc9dd2c450d82c58d67a9 (diff)
ARM: Don't unconditionally bloat thread_info
There is no point reserving space at the bottom of the kernel stack for per-thread crunch state, and per-thread VFP state if these are not being supported by the kernel being built. Remove these members from the thread union when these features are disabled. Reported-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/asm-offsets.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c
index 1429d8989fb..c985b481192 100644
--- a/arch/arm/kernel/asm-offsets.c
+++ b/arch/arm/kernel/asm-offsets.c
@@ -59,10 +59,12 @@ int main(void)
DEFINE(TI_USED_CP, offsetof(struct thread_info, used_cp));
DEFINE(TI_TP_VALUE, offsetof(struct thread_info, tp_value));
DEFINE(TI_FPSTATE, offsetof(struct thread_info, fpstate));
+#ifdef CONFIG_VFP
DEFINE(TI_VFPSTATE, offsetof(struct thread_info, vfpstate));
#ifdef CONFIG_SMP
DEFINE(VFP_CPU, offsetof(union vfp_state, hard.cpu));
#endif
+#endif
#ifdef CONFIG_ARM_THUMBEE
DEFINE(TI_THUMBEE_STATE, offsetof(struct thread_info, thumbee_state));
#endif