On 08/05/2014 06:25 PM, Chen Gang wrote:
> When DYNAMIC_DEBUG enabled, pr_debug() depends on KBUILD_MODNAME which
> also depends on the modules number in Makefile. The related information
> in "scripts/Makefile.lib" line 94:
>
> # $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will
> # end up in (or would, if it gets compiled in)
> # Note: Files that end up in two or more modules are compiled without the
> # KBUILD_MODNAME definition. The reason is that any made-up name would
> # differ in different configs.
>
> For this case, 'radio-si470x-i2c.o' and 'radio-si470x-common.o' are in
> one line, so cause compiling issue. And 'uaccess.h' is a common shared
> header (not specially for drivers), so use pr_devel() instead of is OK.
>
> The related error with allmodconfig:
>
> CC [M] drivers/media/radio/si470x/radio-si470x-i2c.o
> CC [M] drivers/media/radio/si470x/radio-si470x-common.o
> In file included from include/linux/printk.h:257:0,
> from include/linux/kernel.h:13,
> from drivers/media/radio/si470x/radio-si470x.h:29,
> from drivers/media/radio/si470x/radio-si470x-common.c:115:
> ./arch/microblaze/include/asm/uaccess.h: In function 'access_ok':
> include/linux/dynamic_debug.h:66:14: error: 'KBUILD_MODNAME' undeclared
> (first use in this function)
> .modname = KBUILD_MODNAME, \
> ^
> include/linux/dynamic_debug.h:76:2: note: in expansion of macro
> 'DEFINE_DYNAMIC_DEBUG_METADATA'
> DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
> ^
> include/linux/printk.h:263:2: note: in expansion of macro 'dynamic_pr_debug'
> dynamic_pr_debug(fmt, ##__VA_ARGS__)
> ^
> ./arch/microblaze/include/asm/uaccess.h:101:3: note: in expansion of macro
> 'pr_debug'
> pr_debug("ACCESS fail: %s at 0x%08x (size 0x%x), seg 0x%08x\n",
> ^
>
> Signed-off-by: Chen Gang <gang.chen.5...@gmail.com>
> ---
> arch/microblaze/include/asm/uaccess.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/microblaze/include/asm/uaccess.h
> b/arch/microblaze/include/asm/uaccess.h
> index 0aa0057..59a89a6 100644
> --- a/arch/microblaze/include/asm/uaccess.h
> +++ b/arch/microblaze/include/asm/uaccess.h
> @@ -98,13 +98,13 @@ static inline int access_ok(int type, const void __user
> *addr,
>
> if ((get_fs().seg < ((unsigned long)addr)) ||
> (get_fs().seg < ((unsigned long)addr + size - 1))) {
> - pr_debug("ACCESS fail: %s at 0x%08x (size 0x%x), seg 0x%08x\n",
> + pr_devel("ACCESS fail: %s at 0x%08x (size 0x%x), seg 0x%08x\n",
> type ? "WRITE" : "READ ", (__force u32)addr, (u32)size,
> (u32)get_fs().seg);
> return 0;
> }
> ok:
> - pr_debug("ACCESS OK: %s at 0x%08x (size 0x%x), seg 0x%08x\n",
> + pr_devel("ACCESS OK: %s at 0x%08x (size 0x%x), seg 0x%08x\n",
> type ? "WRITE" : "READ ", (__force u32)addr, (u32)size,
> (u32)get_fs().seg);
> return 1;
> Applied. Thanks, Michal -- Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91 w: www.monstr.eu p: +42-0-721842854 Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/ Maintainer of Linux kernel - Xilinx Zynq ARM architecture Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform
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