On Wed, May 24, 2017 at 8:35 AM, Namhyung Kim <[email protected]> wrote: > On Tue, May 23, 2017 at 12:48:41AM -0700, David Carrillo-Cisneros wrote: >> Most callers of readn in perf header read either a 32 or a 64 bits >> number, error check it and swap it, if necessary. >> >> Create do_read_u32 and do_read_u64 to simplify this usage. >> >> Signed-off-by: David Carrillo-Cisneros <[email protected]> >> --- >> tools/perf/util/header.c | 212 >> +++++++++++++++++------------------------------ >> 1 file changed, 76 insertions(+), 136 deletions(-) >> >> diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c >> index 948b2c5efb65..1dd4dbe13f88 100644 >> --- a/tools/perf/util/header.c >> +++ b/tools/perf/util/header.c >> @@ -117,27 +117,56 @@ static int do_write_string(int fd, const char *str) >> return write_padded(fd, str, olen, len); >> } >> >> +static int __do_read(int fd, void *addr, ssize_t size) >> +{ >> + ssize_t ret = readn(fd, addr, size); >> + >> + if (ret != (ssize_t)size) > > The 'size' is already ssize_t.
Will fix.

