Author: asomers Date: Thu Feb 18 20:08:01 2016 New Revision: 295768 URL: https://svnweb.freebsd.org/changeset/base/295768
Log: Fix compiler warnings in iostat Raise WARNS from 1 to 6 (the default) Fix warnings: * Use C99 designated initializers for structs, and initialize all fields * Mark global variables as static * Mark unused function arguments * Be careful about signed/unsigned comparisons Reviewed by: eadler MFC after: 4 weeks Sponsored by: Spectra Logic Corp Differential Revision: https://reviews.freebsd.org/D5328 Modified: head/usr.sbin/iostat/Makefile head/usr.sbin/iostat/iostat.c Modified: head/usr.sbin/iostat/Makefile ============================================================================== --- head/usr.sbin/iostat/Makefile Thu Feb 18 19:37:39 2016 (r295767) +++ head/usr.sbin/iostat/Makefile Thu Feb 18 20:08:01 2016 (r295768) @@ -6,6 +6,4 @@ MAN= iostat.8 LIBADD= devstat kvm m -WARNS?= 1 - .include <bsd.prog.mk> Modified: head/usr.sbin/iostat/iostat.c ============================================================================== --- head/usr.sbin/iostat/iostat.c Thu Feb 18 19:37:39 2016 (r295767) +++ head/usr.sbin/iostat/iostat.c Thu Feb 18 20:08:01 2016 (r295768) @@ -117,30 +117,34 @@ #include <termios.h> #include <unistd.h> -struct nlist namelist[] = { +static struct nlist namelist[] = { #define X_TTY_NIN 0 - { "_tty_nin" }, + { .n_name = "_tty_nin", + .n_type = 0, .n_other = 0, .n_desc = 0, .n_value = 0 }, #define X_TTY_NOUT 1 - { "_tty_nout" }, + { .n_name = "_tty_nout", + .n_type = 0, .n_other = 0, .n_desc = 0, .n_value = 0 }, #define X_BOOTTIME 2 - { "_boottime" }, + { .n_name = "_boottime", + .n_type = 0, .n_other = 0, .n_desc = 0, .n_value = 0 }, #define X_END 2 - { NULL }, + { .n_name = NULL, + .n_type = 0, .n_other = 0, .n_desc = 0, .n_value = 0 }, }; #define IOSTAT_DEFAULT_ROWS 20 /* Traditional default `wrows' */ -struct statinfo cur, last; -int num_devices; -struct device_selection *dev_select; -int maxshowdevs; -volatile sig_atomic_t headercount; -volatile sig_atomic_t wresized; /* Tty resized, when non-zero. */ -volatile sig_atomic_t alarm_rang; -volatile sig_atomic_t return_requested; -unsigned short wrows; /* Current number of tty rows. */ -int dflag = 0, Iflag = 0, Cflag = 0, Tflag = 0, oflag = 0, Kflag = 0; -int xflag = 0, zflag = 0; +static struct statinfo cur, last; +static int num_devices; +static struct device_selection *dev_select; +static int maxshowdevs; +static volatile sig_atomic_t headercount; +static volatile sig_atomic_t wresized; /* Tty resized, when non-zero. */ +static volatile sig_atomic_t alarm_rang; +static volatile sig_atomic_t return_requested; +static unsigned short wrows; /* Current number of tty rows. */ +static int dflag = 0, Iflag = 0, Cflag = 0, Tflag = 0, oflag = 0, Kflag = 0; +static int xflag = 0, zflag = 0; /* local function declarations */ static void usage(void); @@ -650,7 +654,7 @@ main(int argc, char **argv) * Force a header to be prepended to the next output. */ void -needhdr(int signo) +needhdr(int signo __unused) { headercount = 1; @@ -662,7 +666,7 @@ needhdr(int signo) * prepended to the next output. */ void -needresize(int signo) +needresize(int signo __unused) { wresized = 1; @@ -673,7 +677,7 @@ needresize(int signo) * Record the alarm so the main loop can break its sleep */ void -alarm_clock(int signo) +alarm_clock(int signo __unused) { alarm_rang = 1; } @@ -682,7 +686,7 @@ alarm_clock(int signo) * Request that the main loop exit soon */ void -needreturn(int signo) +needreturn(int signo __unused) { return_requested = 1; } @@ -998,8 +1002,7 @@ readvar(kvm_t *kd, const char *name, int warnx("kvm_read(%s): %s", namelist[nlid].n_name, kvm_geterr(kd)); return (1); - } - if (nbytes != len) { + } else if ((size_t)nbytes != len) { warnx("kvm_read(%s): expected %zu bytes, got %zd bytes", namelist[nlid].n_name, len, nbytes); return (1); _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
