On linux-next, I get a build failure in some configurations: drivers/perf/arm_spe_pmu.c: In function 'arm_spe_pmu_setup_aux': drivers/perf/arm_spe_pmu.c:857:14: error: implicit declaration of function 'vmap'; did you mean 'swap'? [-Werror=implicit-function-declaration] buf->base = vmap(pglist, nr_pages, VM_MAP, PAGE_KERNEL); ^~~~ swap drivers/perf/arm_spe_pmu.c:857:37: error: 'VM_MAP' undeclared (first use in this function); did you mean 'VM_MPX'? buf->base = vmap(pglist, nr_pages, VM_MAP, PAGE_KERNEL); ^~~~~~ VM_MPX drivers/perf/arm_spe_pmu.c:857:37: note: each undeclared identifier is reported only once for each function it appears in drivers/perf/arm_spe_pmu.c: In function 'arm_spe_pmu_free_aux': drivers/perf/arm_spe_pmu.c:878:2: error: implicit declaration of function 'vunmap'; did you mean 'iounmap'? [-Werror=implicit-function-declaration]
vmap() is declared in linux/vmalloc.h, so we should include that header file. Signed-off-by: Arnd Bergmann <a...@arndb.de> --- I have not bisected what caused this problem, presumably some other header stopped including vmlinux.h. --- drivers/perf/arm_spe_pmu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c index 51b40aecb776..f90672516ada 100644 --- a/drivers/perf/arm_spe_pmu.c +++ b/drivers/perf/arm_spe_pmu.c @@ -32,6 +32,7 @@ #include <linux/perf_event.h> #include <linux/platform_device.h> #include <linux/slab.h> +#include <linux/vmalloc.h> #include <asm/sysreg.h> -- 2.9.0