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atapi: GESN: Use structs for commonly-used field types

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Instead of using magic numbers, use structs that are more descriptive of
the fields being used.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Acked-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Amit Shah 2011-04-12 21:36:05 +05:30 committed by Kevin Wolf
parent 493accd624
commit 8f8e834d70
1 changed files with 14 additions and 2 deletions
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16
hw/ide/core.c
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@ -1088,11 +1088,23 @@ static void handle_get_event_status_notification(IDEState *s,
uint8_t *buf,
const uint8_t *packet)
{
struct {
uint8_t opcode;
uint8_t polled; /* lsb bit is polled; others are reserved */
uint8_t reserved2[2];
uint8_t class;
uint8_t reserved3[2];
uint16_t len;
uint8_t control;
} __attribute__((packed)) *gesn_cdb;
unsigned int max_len;
max_len = ube16_to_cpu(packet + 7);
gesn_cdb = (void *)packet;
max_len = be16_to_cpu(gesn_cdb->len);
if (!(packet[1] & 0x01)) { /* asynchronous mode */
/* It is fine by the MMC spec to not support async mode operations */
if (!(gesn_cdb->polled & 0x01)) { /* asynchronous mode */
/* Only polling is supported, asynchronous mode is not. */
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
ASC_INV_FIELD_IN_CMD_PACKET);