diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2007-07-20 02:07:31 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-07-20 09:35:35 +0100 |
| commit | 7dea1b20066cd30fb54da7e686b16b5e38b46b2d (patch) | |
| tree | bf4ccad6871f9b62426659f469a07360fb3166c3 /include/asm-arm | |
| parent | a8135fcfd0431eda3653c7069e7aefc8674fdfbe (diff) | |
[ARM] 4494/1: iop13xx: fix up elf_hwcap compile breakage
arch/arm/boot/compressed/misc.o: In function `valid_user_regs':
misc.c:(.text+0x74): undefined reference to `elf_hwcap'
This triggers after the various elf_hwcap cleanups in:
f884b1cf578e079f01682514ae1ae64c74586602
d1cbbd6b413510c6512f4f80ffd48db1a8dd554a
include/asm-arm/arch-iop13xx/uncompress.h calls cpu_relax while spinning on
a register value. cpu_relax requires processor.h->ptrace.h->hwcap.h
'elf_hwcap' is defined as an extern, but since the uncompressor does not
link against arch/arm/kernel/setup.c 'elf_hwcap' remains undefined.
Fix is to open code the cpu_relax() call as barrier().
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm')
| -rw-r--r-- | include/asm-arm/arch-iop13xx/uncompress.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/asm-arm/arch-iop13xx/uncompress.h b/include/asm-arm/arch-iop13xx/uncompress.h index b9525d59b7ad..dd9c2934190e 100644 --- a/include/asm-arm/arch-iop13xx/uncompress.h +++ b/include/asm-arm/arch-iop13xx/uncompress.h @@ -1,7 +1,6 @@ #include <asm/types.h> #include <linux/serial_reg.h> #include <asm/hardware.h> -#include <asm/processor.h> #define UART_BASE ((volatile u32 *)IOP13XX_UART1_PHYS) #define TX_DONE (UART_LSR_TEMT | UART_LSR_THRE) @@ -9,7 +8,7 @@ static inline void putc(char c) { while ((UART_BASE[UART_LSR] & TX_DONE) != TX_DONE) - cpu_relax(); + barrier(); UART_BASE[UART_TX] = c; } |