The component st_size of struct stat is of type off_t. Depending on the system printing it it with %ld leads to a warning:
tools/mkimage.c:438:54: warning: format '%ld' expects argument of type 'long int', but argument 5 has type 'off_t' {aka 'long long int'} [-Wformat=] 438 | "%s: Bad size: \"%s\" is not valid image: size %ld < %u\n", | ~~^ | | | long int | %lld When comparing an off_t value to a 32bit integer we should not convert to uint32_t but to off_t which may be wider. Reported-by: Milan P. Stanić <m...@arvanta.net> Fixes: 331f0800f1a3 ("mkimage: allow -l to work on block devices on Linux") Signed-off-by: Heinrich Schuchardt <heinrich.schucha...@canonical.com> --- tools/mkimage.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/tools/mkimage.c b/tools/mkimage.c index fbe883ce36..79042be828 100644 --- a/tools/mkimage.c +++ b/tools/mkimage.c @@ -433,11 +433,12 @@ int main(int argc, char **argv) params.cmdname, params.imagefile); exit (EXIT_FAILURE); #endif - } else if ((unsigned)sbuf.st_size < tparams->header_size) { + } else if (sbuf.st_size < (off_t)tparams->header_size) { fprintf (stderr, - "%s: Bad size: \"%s\" is not valid image: size %ld < %u\n", + "%s: Bad size: \"%s\" is not valid image: size %llu < %u\n", params.cmdname, params.imagefile, - sbuf.st_size, tparams->header_size); + (unsigned long long) sbuf.st_size, + tparams->header_size); exit (EXIT_FAILURE); } else { size = sbuf.st_size; -- 2.33.1