Blackfin arch: fix bug - shared lib function in L2 failed be called
Allow user space to access L2 SRAM.
Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 77800dd..0c3ea11 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -351,10 +351,15 @@
return 1;
#endif
#if L1_DATA_B_LENGTH != 0
- if (addr >= L1_DATA_B_START
+ if (addr >= L1_DATA_B_START + (_ebss_b_l1 - _sdata_b_l1)
&& addr + size <= L1_DATA_B_START + L1_DATA_B_LENGTH)
return 1;
#endif
+#if L2_LENGTH != 0
+ if (addr >= L2_START + (_ebss_l2 - _stext_l2)
+ && addr + size <= L2_START + L2_LENGTH)
+ return 1;
+#endif
return 0;
}
EXPORT_SYMBOL(_access_ok);