[PATCH v2] MIPS: Loongson: Use default CONFIG_FRAME_WARN as 2048 for Loongson64 to fix build warnings

After commit 70b838292bef ("MIPS: Update default config file for
Loongson-3"), CONFIG_VHOST_SCSI and CONFIG_VHOST are set when use
loongson3_defconfig, and then there exists the following two build
warnings related with these two configs:

  CC [M]  drivers/vhost/scsi.o
drivers/vhost/scsi.c: In function ‘vhost_scsi_flush’:
drivers/vhost/scsi.c:1374:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
  LD [M]  drivers/vhost/vhost_scsi.o
  CC [M]  drivers/vhost/vsock.o
  LD [M]  drivers/vhost/vhost_vsock.o
  CC [M]  drivers/vhost/vhost.o
drivers/vhost/vhost.c: In function ‘log_used’:
drivers/vhost/vhost.c:1896:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^

CONFIG_FRAME_WARN=2048 can fix it, since the default CONFIG_FRAME_WARN
for 64BIT is 2048, just delete the CONFIG_FRAME_WARN line in defconfig.

config FRAME_WARN
        int "Warn for stack frames larger than"
        range 0 8192
        default 2048 if GCC_PLUGIN_LATENT_ENTROPY
        default 1280 if (!64BIT && PARISC)
        default 1024 if (!64BIT && !PARISC)
        default 2048 if 64BIT

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---
 arch/mips/configs/loongson3_defconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/mips/configs/loongson3_defconfig b/arch/mips/configs/loongson3_defconfig
index a65b08d..a5005c8 100644
--- a/arch/mips/configs/loongson3_defconfig
+++ b/arch/mips/configs/loongson3_defconfig

@@ -403,7 +403,6 @@ CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_TWOFISH=m
 CONFIG_CRYPTO_DEFLATE=m
 CONFIG_PRINTK_TIME=y
-CONFIG_FRAME_WARN=1024
 CONFIG_STRIP_ASM_SYMS=y
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_SCHED_DEBUG is not set

-- 
2.1.0

On Fri, Aug 14, 2020 at 06:31:30PM +0800, Tiezhu Yang wrote:

After commit 70b838292bef ("MIPS: Update default config file for
Loongson-3"), CONFIG_VHOST_SCSI and CONFIG_VHOST are set when use
loongson3_defconfig, and then there exists the following two build
warnings related with these two configs:

  CC [M]  drivers/vhost/scsi.o
drivers/vhost/scsi.c: In function ‘vhost_scsi_flush’:
drivers/vhost/scsi.c:1374:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
  LD [M]  drivers/vhost/vhost_scsi.o
  CC [M]  drivers/vhost/vsock.o
  LD [M]  drivers/vhost/vhost_vsock.o
  CC [M]  drivers/vhost/vhost.o
drivers/vhost/vhost.c: In function ‘log_used’:
drivers/vhost/vhost.c:1896:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^

CONFIG_FRAME_WARN=2048 can fix it, since the default CONFIG_FRAME_WARN
for 64BIT is 2048, just delete the CONFIG_FRAME_WARN line in defconfig.

config FRAME_WARN
        int "Warn for stack frames larger than"
        range 0 8192
        default 2048 if GCC_PLUGIN_LATENT_ENTROPY
        default 1280 if (!64BIT && PARISC)
        default 1024 if (!64BIT && !PARISC)
        default 2048 if 64BIT

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---
 arch/mips/configs/loongson3_defconfig | 1 -
 1 file changed, 1 deletion(-)

applied to mips-next.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]