If the cpio command is not available the error emitted by gen_kheaders.so is not clear as all output of the call to cpio is discarded: GNU make 4.4: GEN kernel/kheaders_data.tar.xz find: 'standard output': Broken pipe find: write error make[2]: *** [kernel/Makefile:157: kernel/kheaders_data.tar.xz] Error 127 make[1]: *** [scripts/Makefile.build:504: kernel] Error 2 GNU make < 4.4: GEN kernel/kheaders_data.tar.xz make[2]: *** [kernel/Makefile:157: kernel/kheaders_data.tar.xz] Error 127 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [scripts/Makefile.build:504: kernel] Error 2 Add an explicit check that will trigger a clear message about the issue: CHK kernel/kheaders_data.tar.xz ./kernel/gen_kheaders.sh: line 17: type: cpio: not found The other commands executed by gen_kheaders.sh are part of a standard installation, so they are not checked. Reported-by: Amy Parker <apark0006@xxxxxxxxxxxxxxxxxxxx> Link: https://lore.kernel.org/lkml/CAPOgqxFva=tOuh1UitCSN38+28q3BNXKq19rEsVNPRzRqKqZ+g@xxxxxxxxxxxxxx/ Signed-off-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx> --- kernel/gen_kheaders.sh | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/gen_kheaders.sh b/kernel/gen_kheaders.sh index 473036b43c83..81b97f0f6556 100755 --- a/kernel/gen_kheaders.sh +++ b/kernel/gen_kheaders.sh @@ -14,6 +14,8 @@ include/ arch/$SRCARCH/include/ " +type cpio > /dev/null + # Support incremental builds by skipping archive generation # if timestamps of files being archived are not changed. --- base-commit: d532dd102151cc69fcd00b13e5a9689b23c0c8d9 change-id: 20230117-kernel-kheaders-cpio-2f7c70bc9c19 Best regards, -- Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
