Hi Simon!
Am 19.11.2016 um 14:47 schrieb Simon Glass:
Hi Bernhard,
On 16 November 2016 at 03:29, Bernhard Nortmann bernhard.nortmann@web.de wrote:
"transient" (='t') is like "any", but requests that a variable should not be exported (ENV_FLAGS_VARACCESS_PREVENT_EXPORT).
"system" (='S') is meant for 'internal' variables that aren't supposed to be changed by the user. It corresponds to "transient" plus "read-only".
Signed-off-by: Bernhard Nortmann bernhard.nortmann@web.de
Changes in v2:
Fixed outdated "env_flags_varaccess_lock" to the correct "env_flags_varaccess_system"
common/env_flags.c | 11 +++++++++-- include/env_flags.h | 2 ++ 2 files changed, 11 insertions(+), 2 deletions(-)
Reviewed-by: Simon Glass sjg@chromium.org
Please see below.
[...] Can these flags be shortened? This is not Java :-) Also it might be helpful to use the
[index] = value
syntax so you can see which value it corresponds to?
[...] Regards, Simon
I like the [index] suggestion, which already gives a version that I find a lot easier to read:
diff --git a/common/env_flags.c b/common/env_flags.c index f39d952..6dea70c 100644 --- a/common/env_flags.c +++ b/common/env_flags.c @@ -28,16 +28,22 @@ #endif
static const char env_flags_vartype_rep[] = "sdxb" ENV_FLAGS_NET_VARTYPE_REPS; -static const char env_flags_varaccess_rep[] = "aroc"; +static const char env_flags_varaccess_rep[] = "aroctS"; static const int env_flags_varaccess_mask[] = { - 0, - ENV_FLAGS_VARACCESS_PREVENT_DELETE | - ENV_FLAGS_VARACCESS_PREVENT_CREATE | - ENV_FLAGS_VARACCESS_PREVENT_OVERWR, - ENV_FLAGS_VARACCESS_PREVENT_DELETE | - ENV_FLAGS_VARACCESS_PREVENT_OVERWR, - ENV_FLAGS_VARACCESS_PREVENT_DELETE | - ENV_FLAGS_VARACCESS_PREVENT_NONDEF_OVERWR}; + [0] = 0, /* no restrictions */ + [1] = ENV_FLAGS_VARACCESS_PREVENT_DELETE + | ENV_FLAGS_VARACCESS_PREVENT_CREATE + | ENV_FLAGS_VARACCESS_PREVENT_OVERWR, + [2] = ENV_FLAGS_VARACCESS_PREVENT_DELETE + | ENV_FLAGS_VARACCESS_PREVENT_OVERWR, + [3] = ENV_FLAGS_VARACCESS_PREVENT_DELETE + | ENV_FLAGS_VARACCESS_PREVENT_NONDEF_OVERWR, + [4] = ENV_FLAGS_VARACCESS_PREVENT_EXPORT, + [5] = ENV_FLAGS_VARACCESS_PREVENT_DELETE + | ENV_FLAGS_VARACCESS_PREVENT_CREATE + | ENV_FLAGS_VARACCESS_PREVENT_OVERWR + | ENV_FLAGS_VARACCESS_PREVENT_EXPORT + };
#ifdef CONFIG_CMD_ENV_FLAGS static const char * const env_flags_vartype_names[] = {
As for the shortening of the various flags: The only one I'm introducing is ENV_FLAGS_VARACCESS_PREVENT_EXPORT (in patch 3/7), following along the spirit of existing ones - so I might not be the right person to bust them all?
Regards, B. Nortmann