[PATCH 05/76] parse-options: add OPT_BITOP()
From: Nguyễn Thái Ngọc Duy <hidden>
Date: 2019-01-17 13:06:59
Subsystem:
the rest · Maintainer:
Linus Torvalds
This is needed for diff_opt_parse() where we do value = (value & ~mask) | some_more; Signed-off-by: Nguyễn Thái Ngọc Duy <redacted> --- parse-options.c | 7 +++++++ parse-options.h | 5 +++++ 2 files changed, 12 insertions(+)
diff --git a/parse-options.c b/parse-options.c
index 9710ec9d5e..1244968855 100644
--- a/parse-options.c
+++ b/parse-options.c@@ -109,6 +109,13 @@ static int get_value(struct parse_opt_ctx_t *p, *(int *)opt->value &= ~opt->defval; return 0; + case OPTION_BITOP: + if (unset) + BUG("BITOP can't have unset form"); + *(int *)opt->value &= ~opt->extra; + *(int *)opt->value |= opt->defval; + return 0; + case OPTION_COUNTUP: if (*(int *)opt->value < 0) *(int *)opt->value = 0;
diff --git a/parse-options.h b/parse-options.h
index d663b83973..c97324f576 100644
--- a/parse-options.h
+++ b/parse-options.h@@ -10,6 +10,7 @@ enum parse_opt_type { /* options with no arguments */ OPTION_BIT, OPTION_NEGBIT, + OPTION_BITOP, OPTION_COUNTUP, OPTION_SET_INT, OPTION_CMDMODE,
@@ -118,6 +119,7 @@ struct option { int flags; parse_opt_cb *callback; intptr_t defval; + intptr_t extra; }; #define OPT_BIT_F(s, l, v, h, b, f) { OPTION_BIT, (s), (l), (v), NULL, (h), \
@@ -133,6 +135,9 @@ struct option { (h), PARSE_OPT_NOARG} #define OPT_GROUP(h) { OPTION_GROUP, 0, NULL, NULL, NULL, (h) } #define OPT_BIT(s, l, v, h, b) OPT_BIT_F(s, l, v, h, b, 0) +#define OPT_BITOP(s, l, v, h, set, clear) { OPTION_BITOP, (s), (l), (v), NULL, (h), \ + PARSE_OPT_NOARG|PARSE_OPT_NONEG, NULL, \ + (set), (clear) } #define OPT_NEGBIT(s, l, v, h, b) { OPTION_NEGBIT, (s), (l), (v), NULL, \ (h), PARSE_OPT_NOARG, NULL, (b) } #define OPT_COUNTUP(s, l, v, h) OPT_COUNTUP_F(s, l, v, h, 0)
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2.20.0.482.g66447595a7