From ff268ff7f32bf5388b7422f0c0773d88add23423 Mon Sep 17 00:00:00 2001 From: Mark Salter Date: Sat, 5 Apr 2014 15:25:49 +0100 Subject: arm64: fix !CONFIG_COMPAT build failures MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Recent arm64 builds using CONFIG_ARM64_64K_PAGES are failing with: arch/arm64/kernel/perf_regs.c: In function ‘perf_reg_abi’: arch/arm64/kernel/perf_regs.c:41:2: error: implicit declaration of function ‘is_compat_thread’ arch/arm64/kernel/perf_event.c:1398:2: error: unknown type name ‘compat_uptr_t’ This is due to some recent arm64 perf commits with compat support: commit 23c7d70d55c6d9: ARM64: perf: add support for frame pointer unwinding in compat mode commit 2ee0d7fd36a3f8: ARM64: perf: add support for perf registers API Those patches make the arm64 kernel unbuildable if CONFIG_COMPAT is not defined and CONFIG_ARM64_64K_PAGES depends on !CONFIG_COMPAT. This patch allows the arm64 kernel to build with and without CONFIG_COMPAT. Signed-off-by: Mark Salter Signed-off-by: Catalin Marinas --- arch/arm64/kernel/perf_event.c | 4 ++++ arch/arm64/kernel/perf_regs.c | 2 ++ 2 files changed, 6 insertions(+) (limited to 'arch/arm64/kernel') diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index e868c72a793..baf5afb7e6a 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -1386,6 +1386,7 @@ user_backtrace(struct frame_tail __user *tail, return buftail.fp; } +#ifdef CONFIG_COMPAT /* * The registers we're interested in are at the end of the variable * length saved register structure. The fp points at the end of this @@ -1430,6 +1431,7 @@ compat_user_backtrace(struct compat_frame_tail __user *tail, return (struct compat_frame_tail __user *)compat_ptr(buftail.fp) - 1; } +#endif /* CONFIG_COMPAT */ void perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs) @@ -1451,6 +1453,7 @@ void perf_callchain_user(struct perf_callchain_entry *entry, tail && !((unsigned long)tail & 0xf)) tail = user_backtrace(tail, entry); } else { +#ifdef CONFIG_COMPAT /* AARCH32 compat mode */ struct compat_frame_tail __user *tail; @@ -1459,6 +1462,7 @@ void perf_callchain_user(struct perf_callchain_entry *entry, while ((entry->nr < PERF_MAX_STACK_DEPTH) && tail && !((unsigned long)tail & 0x3)) tail = compat_user_backtrace(tail, entry); +#endif } } diff --git a/arch/arm64/kernel/perf_regs.c b/arch/arm64/kernel/perf_regs.c index f2d6f0a36d6..422ebd63b61 100644 --- a/arch/arm64/kernel/perf_regs.c +++ b/arch/arm64/kernel/perf_regs.c @@ -2,6 +2,8 @@ #include #include #include + +#include #include #include -- cgit v1.2.3-70-g09d2