failed to run /usr/bin/make [make bzImage -j 32 CC=/syzkaller/gcc/bin/gcc]: exit status 2 scripts/kconfig/conf --silentoldconfig Kconfig CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h HOSTCC arch/x86/tools/relocs_32.o HOSTCC arch/x86/tools/relocs_64.o HOSTCC arch/x86/tools/relocs_common.o CHK include/generated/utsrelease.h HOSTCC scripts/kallsyms HOSTCC scripts/pnmtologo HOSTCC scripts/extract-cert CHK scripts/mod/devicetable-offsets.h HOSTCC scripts/selinux/genheaders/genheaders HOSTCC scripts/selinux/mdp/mdp HOSTLD arch/x86/tools/relocs CHK include/generated/bounds.h CHK include/generated/timeconst.h CHK include/generated/asm-offsets.h CALL scripts/checksyscalls.sh HOSTCC usr/gen_init_cpio EXTRACT_CERTS CHK include/generated/compile.h AS certs/system_certificates.o HOSTCC arch/x86/entry/vdso/vdso2c AR certs/built-in.o GEN usr/initramfs_data.cpio AS usr/initramfs_data.o CC mm/zswap.o AR usr/built-in.o VDSO2C arch/x86/entry/vdso/vdso-image-64.c VDSO2C arch/x86/entry/vdso/vdso-image-x32.c VDSO2C arch/x86/entry/vdso/vdso-image-32.c CC arch/x86/entry/vdso/vdso-image-64.o CC arch/x86/entry/vdso/vdso-image-x32.o CC arch/x86/entry/vdso/vdso-image-32.o LOGO drivers/video/logo/logo_superh_mono.c CC mm/vmpressure.o LOGO drivers/video/logo/logo_linux_clut224.c CC mm/swap_cgroup.o LOGO drivers/video/logo/logo_linux_mono.c CC mm/hugetlb_cgroup.o AR arch/x86/entry/vdso/built-in.o AR arch/x86/entry/built-in.o CC mm/zpool.o AR arch/x86/built-in.o CC mm/zsmalloc.o LOGO drivers/video/logo/clut_vga16.c LOGO drivers/video/logo/logo_linux_vga16.c LOGO drivers/video/logo/logo_superh_vga16.c LOGO drivers/video/logo/logo_blackfin_vga16.c LOGO drivers/video/logo/logo_mac_clut224.c LOGO drivers/video/logo/logo_superh_clut224.c LOGO drivers/video/logo/logo_sun_clut224.c CC mm/early_ioremap.o CC mm/balloon_compaction.o CC mm/userfaultfd.o LOGO drivers/video/logo/logo_parisc_clut224.c CC mm/page_ext.o LOGO drivers/video/logo/logo_blackfin_clut224.c LOGO drivers/video/logo/logo_dec_clut224.c mm/zswap.c: In function ‘zswap_frontswap_store’: mm/zswap.c:1066:2: error: ‘hlen’ undeclared (first use in this function); did you mean ‘len’? hlen = zpool_shrinkable(entry->pool->zpool) ? sizeof(zhdr) : 0; ^~~~ len mm/zswap.c:1066:2: note: each undeclared identifier is reported only once for each function it appears in mm/zswap.c:1004:33: warning: unused variable ‘len’ [-Wunused-variable] unsigned int dlen = PAGE_SIZE, len; ^~~ LOGO drivers/video/logo/logo_spe_clut224.c LOGO drivers/video/logo/logo_m32r_clut224.c LOGO drivers/video/logo/logo_sgi_clut224.c CC mm/usercopy.o CC drivers/video/logo/logo_linux_clut224.o scripts/Makefile.build:310: recipe for target 'mm/zswap.o' failed make[1]: *** [mm/zswap.o] Error 1 make[1]: *** Waiting for unfinished jobs.... AR drivers/video/logo/built-in.o AR drivers/video/built-in.o AR drivers/built-in.o Makefile:1048: recipe for target 'mm' failed make: *** [mm] Error 2