ide: decrease size of ->pc_buf field in struct ide_atapi_pc

struct ide_atapi_pc is often allocated on the stack and size of ->pc_buf
size is 256 bytes.  However since only ide_floppy_create_read_capacity_cmd()
and idetape_create_inquiry_cmd() require such size allocate buffers for
these pc-s explicitely and decrease ->pc_buf size to 64 bytes.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/linux/ide.h b/include/linux/ide.h
index 03c520917b7a..0f48fbd46028 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -377,7 +377,7 @@ enum {
  * With each packet command, we allocate a buffer of IDE_PC_BUFFER_SIZE bytes.
  * This is used for several packet commands (not for READ/WRITE commands).
  */
-#define IDE_PC_BUFFER_SIZE      256
+#define IDE_PC_BUFFER_SIZE      64
 #define ATAPI_WAIT_PC           (60 * HZ)
 
 struct ide_atapi_pc {