Since commit a83e4ca26af8 ("kbuild: remove cc-option switch from
-Wframe-larger-than="), 'make ARCH=um clean' emits an error message
as follows:
$ make ARCH=um clean
gcc: error: missing argument to '-Wframe-larger-than='
We do not care compiler flags when cleaning.
Use the '=' operator for lazy expansion because we do not use
LDFLAGS_pcap.o or LDFLAGS_vde.o when cleaning.
While I was here, I removed the redundant -r option because it
already exists in the recipe.
Fixes: a83e4ca26af8 ("kbuild: remove cc-option switch from -Wframe-larger-than=")
Signed-off-by: Masahiro Yamada <[email protected]>
---
arch/um/drivers/Makefile | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/um/drivers/Makefile b/arch/um/drivers/Makefile
index a290821e355c..2a249f619467 100644
--- a/arch/um/drivers/Makefile
+++ b/arch/um/drivers/Makefile
@@ -18,9 +18,9 @@ ubd-objs := ubd_kern.o ubd_user.o
port-objs := port_kern.o port_user.o
harddog-objs := harddog_kern.o harddog_user.o
-LDFLAGS_pcap.o := -r $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libpcap.a)
+LDFLAGS_pcap.o = $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libpcap.a)
-LDFLAGS_vde.o := -r $(shell $(CC) $(CFLAGS) -print-file-name=libvdeplug.a)
+LDFLAGS_vde.o = $(shell $(CC) $(CFLAGS) -print-file-name=libvdeplug.a)
targets := pcap_kern.o pcap_user.o vde_kern.o vde_user.o
--
2.25.1
On Sat, Apr 18, 2020 at 03:04:55AM +0900, Masahiro Yamada wrote:
> Since commit a83e4ca26af8 ("kbuild: remove cc-option switch from
> -Wframe-larger-than="), 'make ARCH=um clean' emits an error message
> as follows:
>
> $ make ARCH=um clean
> gcc: error: missing argument to '-Wframe-larger-than='
>
> We do not care compiler flags when cleaning.
>
> Use the '=' operator for lazy expansion because we do not use
> LDFLAGS_pcap.o or LDFLAGS_vde.o when cleaning.
>
> While I was here, I removed the redundant -r option because it
> already exists in the recipe.
>
> Fixes: a83e4ca26af8 ("kbuild: remove cc-option switch from -Wframe-larger-than=")
> Signed-off-by: Masahiro Yamada <[email protected]>
> ---
>
> arch/um/drivers/Makefile | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/um/drivers/Makefile b/arch/um/drivers/Makefile
> index a290821e355c..2a249f619467 100644
> --- a/arch/um/drivers/Makefile
> +++ b/arch/um/drivers/Makefile
> @@ -18,9 +18,9 @@ ubd-objs := ubd_kern.o ubd_user.o
> port-objs := port_kern.o port_user.o
> harddog-objs := harddog_kern.o harddog_user.o
>
> -LDFLAGS_pcap.o := -r $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libpcap.a)
> +LDFLAGS_pcap.o = $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libpcap.a)
>
> -LDFLAGS_vde.o := -r $(shell $(CC) $(CFLAGS) -print-file-name=libvdeplug.a)
> +LDFLAGS_vde.o = $(shell $(CC) $(CFLAGS) -print-file-name=libvdeplug.a)
>
> targets := pcap_kern.o pcap_user.o vde_kern.o vde_user.o
>
> --
> 2.25.1
>
I tested building pcap.o both before and after this change, no changes
there.
I do see the clean error fixed.
Reviewed-by: Nathan Chancellor <[email protected]>
Tested-by: Nathan Chancellor <[email protected]> [build]
On Sat, Apr 18, 2020 at 3:06 AM Masahiro Yamada <[email protected]> wrote:
>
> Since commit a83e4ca26af8 ("kbuild: remove cc-option switch from
> -Wframe-larger-than="), 'make ARCH=um clean' emits an error message
> as follows:
>
> $ make ARCH=um clean
> gcc: error: missing argument to '-Wframe-larger-than='
>
> We do not care compiler flags when cleaning.
>
> Use the '=' operator for lazy expansion because we do not use
> LDFLAGS_pcap.o or LDFLAGS_vde.o when cleaning.
>
> While I was here, I removed the redundant -r option because it
> already exists in the recipe.
>
> Fixes: a83e4ca26af8 ("kbuild: remove cc-option switch from -Wframe-larger-than=")
> Signed-off-by: Masahiro Yamada <[email protected]>
> ---
>
> arch/um/drivers/Makefile | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/um/drivers/Makefile b/arch/um/drivers/Makefile
> index a290821e355c..2a249f619467 100644
> --- a/arch/um/drivers/Makefile
> +++ b/arch/um/drivers/Makefile
> @@ -18,9 +18,9 @@ ubd-objs := ubd_kern.o ubd_user.o
> port-objs := port_kern.o port_user.o
> harddog-objs := harddog_kern.o harddog_user.o
>
> -LDFLAGS_pcap.o := -r $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libpcap.a)
> +LDFLAGS_pcap.o = $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libpcap.a)
>
> -LDFLAGS_vde.o := -r $(shell $(CC) $(CFLAGS) -print-file-name=libvdeplug.a)
> +LDFLAGS_vde.o = $(shell $(CC) $(CFLAGS) -print-file-name=libvdeplug.a)
>
> targets := pcap_kern.o pcap_user.o vde_kern.o vde_user.o
>
> --
> 2.25.1
>
Applied to linux-kbuild.
--
Best Regards
Masahiro Yamada