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staging: unisys: visorbus: Replace parser_param_start with parser_name_get

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Replace the general CONTROLVM string parser setup which only handled the
name string with a specific name string retrieval function.

Signed-off-by: Bryan Thompson <bryan.thompson@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Kershner 2017-01-09 13:02:23 -05:00 committed by Greg Kroah-Hartman
parent 396e36c9ac
commit 046f93dc72
1 changed files with 15 additions and 38 deletions
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53
drivers/staging/unisys/visorbus/visorchipset.c
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@ -352,45 +352,12 @@ parser_id_get(struct parser_context *ctx)
{
struct spar_controlvm_parameters_header *phdr = NULL;
if (!ctx)
return NULL_UUID_LE;
phdr = (struct spar_controlvm_parameters_header *)(ctx->data);
return phdr->id;
}
/*
* Describes the state from the perspective of which controlvm messages have
* been received for a bus or device.
*/
enum PARSER_WHICH_STRING {
PARSERSTRING_NAME
};
static void
parser_param_start(struct parser_context *ctx,
enum PARSER_WHICH_STRING which_string)
{
struct spar_controlvm_parameters_header *phdr = NULL;
if (!ctx)
return;
phdr = (struct spar_controlvm_parameters_header *)(ctx->data);
switch (which_string) {
case PARSERSTRING_NAME:
ctx->curr = ctx->data + phdr->name_offset;
ctx->bytes_remaining = phdr->name_length;
break;
default:
break;
}
}
static void parser_done(struct parser_context *ctx)
{
if (!ctx)
return;
controlvm_payload_bytes_buffered -= ctx->param_bytes;
kfree(ctx);
}
@ -404,8 +371,6 @@ parser_string_get(struct parser_context *ctx)
void *value = NULL;
int i;
if (!ctx)
return NULL;
pscan = ctx->curr;
nscan = ctx->bytes_remaining;
if (nscan == 0)
@ -428,6 +393,17 @@ parser_string_get(struct parser_context *ctx)
return value;
}
static void *
parser_name_get(struct parser_context *ctx)
{
struct spar_controlvm_parameters_header *phdr = NULL;
phdr = (struct spar_controlvm_parameters_header *)(ctx->data);
ctx->curr = ctx->data + phdr->name_offset;
ctx->bytes_remaining = phdr->name_length;
return parser_string_get(ctx);
}
struct visor_busdev {
u32 bus_no;
u32 dev_no;
@ -850,9 +826,10 @@ bus_configure(struct controlvm_message *inmsg,
if (err)
goto err_respond;
bus_info->partition_uuid = parser_id_get(parser_ctx);
parser_param_start(parser_ctx, PARSERSTRING_NAME);
bus_info->name = parser_string_get(parser_ctx);
if (parser_ctx) {
bus_info->partition_uuid = parser_id_get(parser_ctx);
bus_info->name = parser_name_get(parser_ctx);
}
POSTCODE_LINUX(BUS_CONFIGURE_EXIT_PC, 0, bus_no,
DIAG_SEVERITY_PRINT);