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authorRandy Dunlap <rdunlap@infradead.org>2017-12-08 10:19:19 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-05-30 07:52:41 +0200
commit829484eb3e003a98a2973acbb90babd898e8ca96 (patch)
treea4562192111b2d97b35614c3b465cefd291ba12c
parent39958037723af522b275f5d3a72f5778d893f5aa (diff)
kdb: make "mdr" command repeat
[ Upstream commit 1e0ce03bf142454f38a5fc050bf4fd698d2d36d8 ] The "mdr" command should repeat (continue) when only Enter/Return is pressed, so make it do so. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Daniel Thompson <daniel.thompson@linaro.org> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: kgdb-bugreport@lists.sourceforge.net Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--kernel/debug/kdb/kdb_main.c27
1 files changed, 21 insertions, 6 deletions
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index c8146d53ca67..07aefa8dbee8 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -1566,6 +1566,7 @@ static int kdb_md(int argc, const char **argv)
int symbolic = 0;
int valid = 0;
int phys = 0;
+ int raw = 0;
kdbgetintenv("MDCOUNT", &mdcount);
kdbgetintenv("RADIX", &radix);
@@ -1575,9 +1576,10 @@ static int kdb_md(int argc, const char **argv)
repeat = mdcount * 16 / bytesperword;
if (strcmp(argv[0], "mdr") == 0) {
- if (argc != 2)
+ if (argc == 2 || (argc == 0 && last_addr != 0))
+ valid = raw = 1;
+ else
return KDB_ARGCOUNT;
- valid = 1;
} else if (isdigit(argv[0][2])) {
bytesperword = (int)(argv[0][2] - '0');
if (bytesperword == 0) {
@@ -1613,7 +1615,10 @@ static int kdb_md(int argc, const char **argv)
radix = last_radix;
bytesperword = last_bytesperword;
repeat = last_repeat;
- mdcount = ((repeat * bytesperword) + 15) / 16;
+ if (raw)
+ mdcount = repeat;
+ else
+ mdcount = ((repeat * bytesperword) + 15) / 16;
}
if (argc) {
@@ -1630,7 +1635,10 @@ static int kdb_md(int argc, const char **argv)
diag = kdbgetularg(argv[nextarg], &val);
if (!diag) {
mdcount = (int) val;
- repeat = mdcount * 16 / bytesperword;
+ if (raw)
+ repeat = mdcount;
+ else
+ repeat = mdcount * 16 / bytesperword;
}
}
if (argc >= nextarg+1) {
@@ -1640,8 +1648,15 @@ static int kdb_md(int argc, const char **argv)
}
}
- if (strcmp(argv[0], "mdr") == 0)
- return kdb_mdr(addr, mdcount);
+ if (strcmp(argv[0], "mdr") == 0) {
+ int ret;
+ last_addr = addr;
+ ret = kdb_mdr(addr, mdcount);
+ last_addr += mdcount;
+ last_repeat = mdcount;
+ last_bytesperword = bytesperword; // to make REPEAT happy
+ return ret;
+ }
switch (radix) {
case 10: