[PATCH 3.18 45/68] arm64: Provide a namespace to NCAPS

Greg Kroah-Hartman
2017-05-05T18:45:56Z

From: Fabio Estevam <fabio.estevam@freescale.com>

commit 06f9eb884be81431d54d7d37390043e3b5b7f14a upstream.

Building arm64.allmodconfig leads to the following warning:

usb/gadget/function/f_ncm.c:203:0: warning: "NCAPS" redefined
#define NCAPS (USB_CDC_NCM_NCAP_ETH_FILTER | USB_CDC_NCM_NCAP_CRC_MODE)
^
In file included from /home/build/work/batch/arch/arm64/include/asm/io.h:32:0,
from /home/build/work/batch/include/linux/clocksource.h:19,
from /home/build/work/batch/include/clocksource/arm_arch_timer.h:19,
from /home/build/work/batch/arch/arm64/include/asm/arch_timer.h:27,
from /home/build/work/batch/arch/arm64/include/asm/timex.h:19,
from /home/build/work/batch/include/linux/timex.h:65,
from /home/build/work/batch/include/linux/sched.h:19,
from /home/build/work/batch/arch/arm64/include/asm/compat.h:25,
from /home/build/work/batch/arch/arm64/include/asm/stat.h:23,
from /home/build/work/batch/include/linux/stat.h:5,
from /home/build/work/batch/include/linux/module.h:10,
from /home/build/work/batch/drivers/usb/gadget/function/f_ncm.c:19:
arch/arm64/include/asm/cpufeature.h:27:0: note: this is the location of the previous definition
#define NCAPS 2

So add a ARM64 prefix to avoid such problem.

Reported-by: Olof's autobuilder <build@lixom.net>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
arch/arm64/include/asm/cpufeature.h | 10 +++++-----
arch/arm64/kernel/setup.c | 2 +-
2 files changed, 6 insertions(+), 6 deletions(-)

--- a/arch/arm64/include/asm/cpufeature.h
+++ b/arch/arm64/include/asm/cpufeature.h
@@ -25,11 +25,11 @@
#define ARM64_WORKAROUND_DEVICE_LOAD_ACQUIRE 1
#define ARM64_WORKAROUND_845719 2

-#define NCAPS 3
+#define ARM64_NCAPS 3

#ifndef __ASSEMBLY__

-extern DECLARE_BITMAP(cpu_hwcaps, NCAPS);
+extern DECLARE_BITMAP(cpu_hwcaps, ARM64_NCAPS);

static inline bool cpu_have_feature(unsigned int num)
{
@@ -38,16 +38,16 @@ static inline bool cpu_have_feature(unsi

static inline bool cpus_have_cap(unsigned int num)
{
- if (num >= NCAPS)
+ if (num >= ARM64_NCAPS)
return false;
return test_bit(num, cpu_hwcaps);
}

static inline void cpus_set_cap(unsigned int num)
{
- if (num >= NCAPS)
+ if (num >= ARM64_NCAPS)
pr_warn("Attempt to set an illegal CPU capability (%d >= %d)\n",
- num, NCAPS);
+ num, ARM64_NCAPS);
else
__set_bit(num, cpu_hwcaps);
}
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -80,7 +80,7 @@ unsigned int compat_elf_hwcap __read_mos
unsigned int compat_elf_hwcap2 __read_mostly;
#endif

-DECLARE_BITMAP(cpu_hwcaps, NCAPS);
+DECLARE_BITMAP(cpu_hwcaps, ARM64_NCAPS);

static const char *cpu_name;
phys_addr_t __fdt_pointer __initdata;