kbuild: Print errors to stderr

... at least in the top-level Makefile and scripts/link-vmlinux.sh.
There are some more instances of the 'echo <error>; exit 1' pattern in
some arch Makefiles and kconfig.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>

1 files changed, 2 insertions, 2 deletions

diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index cd9c6c6bb4c9..4629038c9e5a 100644
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -210,8 +210,8 @@ if [ -n "${CONFIG_KALLSYMS}" ]; then
         mksysmap ${kallsyms_vmlinux} .tmp_System.map
 
         if ! cmp -s System.map .tmp_System.map; then
-                echo Inconsistent kallsyms data
-                echo echo Try "make KALLSYMS_EXTRA_PASS=1" as a workaround
+                echo >&2 Inconsistent kallsyms data
+                echo >&2 echo Try "make KALLSYMS_EXTRA_PASS=1" as a workaround
                 cleanup
                 exit 1
         fi