[PATCH 10/17] mkfs: add respecification detection to generic parsing

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From: Dave Chinner <dchinner@xxxxxxxxxx>

Add flags to the generic input parameter tables so that
respecification can be detected in a generic manner.

Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Jan Ťulák <jtulak@xxxxxxxxxx>
---
 mkfs/xfs_mkfs.c | 68 +++++++++++++++------------------------------------------
 1 file changed, 18 insertions(+), 50 deletions(-)

diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index 332c491..0bd8998 100644
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -57,15 +57,17 @@ static long long cvtnum(unsigned int blocksize,
 struct opt_params {
 	const char	name;
 	const char	*subopts[MAX_SUBOPTS];
+
 	struct subopt_param {
 		int		index;
+		bool		seen;
 		long long	minval;
 		long long	maxval;
 		long long	defaultval;
 	}		subopt_params[MAX_SUBOPTS];
 };
 
-const struct opt_params bopts = {
+struct opt_params bopts = {
 	.name = 'b',
 	.subopts = {
 #define	B_LOG		0
@@ -88,7 +90,7 @@ const struct opt_params bopts = {
 	},
 };
 
-const struct opt_params dopts = {
+struct opt_params dopts = {
 	.name = 'd',
 	.subopts = {
 #define	D_AGCOUNT	0
@@ -197,7 +199,7 @@ const struct opt_params dopts = {
 };
 
 
-const struct opt_params iopts = {
+struct opt_params iopts = {
 	.name = 'i',
 	.subopts = {
 #define	I_ALIGN		0
@@ -257,7 +259,7 @@ const struct opt_params iopts = {
 	},
 };
 
-const struct opt_params lopts = {
+struct opt_params lopts = {
 	.name = 'l',
 	.subopts = {
 #define	L_AGNUM		0
@@ -342,7 +344,7 @@ const struct opt_params lopts = {
 	},
 };
 
-const struct opt_params nopts = {
+struct opt_params nopts = {
 	.name = 'n',
 	.subopts = {
 #define	N_LOG		0
@@ -379,7 +381,7 @@ const struct opt_params nopts = {
 	},
 };
 
-const struct opt_params ropts = {
+struct opt_params ropts = {
 	.name = 'r',
 	.subopts = {
 #define	R_EXTSIZE	0
@@ -418,7 +420,7 @@ const struct opt_params ropts = {
 	},
 };
 
-const struct opt_params sopts = {
+struct opt_params sopts = {
 	.name = 's',
 	.subopts = {
 #define	S_LOG		0
@@ -455,7 +457,7 @@ const struct opt_params sopts = {
 	},
 };
 
-const struct opt_params mopts = {
+struct opt_params mopts = {
 	.name = 'm',
 	.subopts = {
 #define	M_CRC		0
@@ -1192,7 +1194,6 @@ struct sb_feat_args {
 	int	dir_version;
 	int	spinodes;
 	int	finobt;
-	bool	finobtflag;
 	bool	inode_align;
 	bool	nci;
 	bool	lazy_sb_counters;
@@ -1323,10 +1324,10 @@ illegal_option(
 static int
 getnum_checked(
 	const char		*str,
-	const struct opt_params	*opts,
+	struct opt_params	*opts,
 	int			index)
 {
-	const struct subopt_param *sp = &opts->subopt_params[index];
+	struct subopt_param *sp = &opts->subopt_params[index];
 	long long		c;
 
 	if (sp->index != index) {
@@ -1336,6 +1337,11 @@ getnum_checked(
 		reqval(opts->name, (char **)opts->subopts, index);
 	}
 
+	/* check for respecification of the option */
+	if (sp->seen)
+		respec(opts->name, (char **)opts->subopts, index);
+	sp->seen = true;
+
 	if (!str || *str == '\0') {
 		if (sp->defaultval == SUBOPT_NEEDS_VAL)
 			reqval(opts->name, (char **)opts->subopts, index);
@@ -1446,7 +1452,6 @@ main(
 	struct fs_topology	ft;
 	struct sb_feat_args	sb_feat = {
 		.finobt = 1,
-		.finobtflag = false,
 		.spinodes = 0,
 		.log_version = 2,
 		.attr_version = 2,
@@ -1506,8 +1511,6 @@ main(
 				switch (getsubopt(&p, (constpp)subopts,
 						  &value)) {
 				case B_LOG:
-					if (blflag)
-						respec('b', subopts, B_LOG);
 					if (bsflag)
 						conflict('b', subopts, B_SIZE,
 							 B_LOG);
@@ -1546,9 +1549,6 @@ main(
 				switch (getsubopt(&p, (constpp)subopts,
 						  &value)) {
 				case D_AGCOUNT:
-					if (daflag)
-						respec('d', subopts, D_AGCOUNT);
-
 					agcount = getnum_checked(value, &dopts,
 								 D_AGCOUNT);
 					daflag = 1;
@@ -1585,8 +1585,6 @@ main(
 					dsize = value;
 					break;
 				case D_SUNIT:
-					if (dsunit)
-						respec('d', subopts, D_SUNIT);
 					if (nodsflag)
 						conflict('d', subopts, D_NOALIGN,
 							 D_SUNIT);
@@ -1594,8 +1592,6 @@ main(
 								 D_SUNIT);
 					break;
 				case D_SWIDTH:
-					if (dswidth)
-						respec('d', subopts, D_SWIDTH);
 					if (nodsflag)
 						conflict('d', subopts, D_NOALIGN,
 							 D_SWIDTH);
@@ -1616,8 +1612,6 @@ main(
 						illegal(value, "d su");
 					break;
 				case D_SW:
-					if (dsw)
-						respec('d', subopts, D_SW);
 					if (nodsflag)
 						conflict('d', subopts, D_NOALIGN,
 							 D_SW);
@@ -1640,8 +1634,6 @@ main(
 					nodsflag = 1;
 					break;
 				case D_SECTLOG:
-					if (slflag)
-						respec('d', subopts, D_SECTLOG);
 					if (ssflag)
 						conflict('d', subopts, D_SECTSIZE,
 							 D_SECTLOG);
@@ -1704,8 +1696,6 @@ main(
 							value, &iopts, I_ALIGN);
 					break;
 				case I_LOG:
-					if (ilflag)
-						respec('i', subopts, I_LOG);
 					if (ipflag)
 						conflict('i', subopts, I_PERBLOCK,
 							 I_LOG);
@@ -1718,8 +1708,6 @@ main(
 					ilflag = 1;
 					break;
 				case I_MAXPCT:
-					if (imflag)
-						respec('i', subopts, I_MAXPCT);
 					imaxpct = getnum_checked(value, &iopts,
 								 I_MAXPCT);
 					imflag = 1;
@@ -1728,8 +1716,6 @@ main(
 					if (ilflag)
 						conflict('i', subopts, I_LOG,
 							 I_PERBLOCK);
-					if (ipflag)
-						respec('i', subopts, I_PERBLOCK);
 					if (isflag)
 						conflict('i', subopts, I_SIZE,
 							 I_PERBLOCK);
@@ -1746,8 +1732,6 @@ main(
 					if (ipflag)
 						conflict('i', subopts, I_PERBLOCK,
 							 I_SIZE);
-					if (isflag)
-						respec('i', subopts, I_SIZE);
 					isize = getnum_checked(value, &iopts,
 							       I_SIZE);
 					if (!ispow2(isize))
@@ -1786,8 +1770,6 @@ main(
 				switch (getsubopt(&p, (constpp)subopts,
 						  &value)) {
 				case L_AGNUM:
-					if (laflag)
-						respec('l', subopts, L_AGNUM);
 					if (ldflag)
 						conflict('l', subopts, L_AGNUM, L_DEV);
 					logagno = getnum_checked(value, &lopts,
@@ -1809,8 +1791,6 @@ main(
 					if (xi.lisfile)
 						conflict('l', subopts, L_FILE,
 							 L_INTERNAL);
-					if (liflag)
-						respec('l', subopts, L_INTERNAL);
 
 					loginternal = getnum_checked(value,
 							&lopts, L_INTERNAL);
@@ -1828,8 +1808,6 @@ main(
 					lsuflag = 1;
 					break;
 				case L_SUNIT:
-					if (lsunit)
-						respec('l', subopts, L_SUNIT);
 					lsunit = getnum_checked(value, &lopts,
 								 L_SUNIT);
 					lsunitflag = 1;
@@ -1850,8 +1828,6 @@ main(
 					xi.logname = value;
 					break;
 				case L_VERSION:
-					if (lvflag)
-						respec('l', subopts, L_VERSION);
 					sb_feat.log_version =
 						getnum_checked(value, &lopts,
 							       L_VERSION);
@@ -1866,8 +1842,6 @@ main(
 					lsflag = 1;
 					break;
 				case L_SECTLOG:
-					if (lslflag)
-						respec('l', subopts, L_SECTLOG);
 					if (lssflag)
 						conflict('l', subopts, L_SECTSIZE,
 							 L_SECTLOG);
@@ -1950,8 +1924,6 @@ _("cannot specify both -m crc=1 and -n ftype\n"));
 				switch (getsubopt(&p, (constpp)subopts,
 						  &value)) {
 				case N_LOG:
-					if (nlflag)
-						respec('n', subopts, N_LOG);
 					if (nsflag)
 						conflict('n', subopts, N_SIZE,
 							 N_LOG);
@@ -1994,8 +1966,6 @@ _("cannot specify both -m crc=1 and -n ftype\n"));
 					nvflag = 1;
 					break;
 				case N_FTYPE:
-					if (nftype)
-						respec('n', subopts, N_FTYPE);
 					if (sb_feat.crcs_enabled) {
 						fprintf(stderr,
 _("cannot specify both -m crc=1 and -n ftype\n"));
@@ -2078,8 +2048,6 @@ _("cannot specify both -m crc=1 and -n ftype\n"));
 						  &value)) {
 				case S_LOG:
 				case S_SECTLOG:
-					if (slflag || lslflag)
-						respec('s', subopts, S_SECTLOG);
 					if (ssflag || lssflag)
 						conflict('s', subopts,
 							 S_SECTSIZE, S_SECTLOG);
@@ -2296,7 +2264,7 @@ _("32 bit Project IDs always enabled on CRC enabled filesytems\n"));
 		 * tried to use crc=0,finobt=1, then issue a warning before
 		 * turning them off.
 		 */
-		if (sb_feat.finobt && sb_feat.finobtflag) {
+		if (sb_feat.finobt && mopts.subopt_params[M_FINOBT].seen) {
 			fprintf(stderr,
 _("warning: finobt not supported without CRC support, disabled.\n"));
 			sb_feat.finobt = 0;
-- 
2.1.0

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