kernel_optimize_test/arch/powerpc
Grant Likely 622882455a powerpc/mpc5200: Bugfix on handling variable sized buffer descriptors
The buffer descriptors for the ATA BestComm task are larger than the
current definition for bcom_bd.  This causes problems because the
various bcom_... functions dereference the buffer descriptor pointer
by using the array operator which doesn't work when the buffer
descriptors are a different size.

This patch adds the bcom_get_bd() function which uses the value in
bcom_task.bd_size to calculate the offset into the BD table.  This
patch also changes the definition of bcom_bd to specify a data size
of 0 instead of 1 so that it will never work if anyone attempts to
dereference the bd list as an array (as opposed to something that
might work even though it is wrong).

Finally, this patch moves the definition of bcom_bd up in the file
to eliminate a forward declaration.

Based on patch originally written by Tim Yamin.

Signed-off-by: Tim Yamin <plasm@roo.me.uk>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-12-21 02:54:27 -07:00
..
boot powerpc/bootwrapper: Use the child-bus #address-cells to decide which range entry to use 2008-12-21 14:21:17 +11:00
configs Merge branch 'next' of master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx into next 2008-12-17 11:01:43 +11:00
include/asm powerpc/mpc5200: Document and tidy irq driver 2008-12-21 02:54:26 -07:00
kernel powerpc/44x: 44x TLB doesn't need "Guarded" set for all pages 2008-12-21 14:21:16 +11:00
kvm powerpc/mm: Split low level tlb invalidate for nohash processors 2008-12-21 14:21:16 +11:00
lib powerpc: Rename struct vm_region to avoid conflict with NOMMU 2008-12-21 14:21:14 +11:00
math-emu powerpc: Add SPE/EFP math emulation for E500v1/v2 processors. 2008-12-03 08:19:16 -06:00
mm powerpc: Fix missing 'blr' in _tlbia() 2008-12-21 02:54:25 -07:00
oprofile powerpc/cell/OProfile: Fix on-stack array size in activate spu profiling function 2008-10-31 16:13:51 +11:00
platforms powerpc/mpc5200: Make internal 5200 PIC the default interrupt controller 2008-12-21 02:54:27 -07:00
sysdev powerpc/mpc5200: Bugfix on handling variable sized buffer descriptors 2008-12-21 02:54:27 -07:00
xmon powerpc: Fix compile errors with CONFIG_BUG=n 2008-10-31 21:34:09 +11:00
Kconfig powerpc: Add sync_*_for_* to dma_ops 2008-12-03 20:46:36 +11:00
Kconfig.debug powerpc: Allow the max stack trace depth to be configured 2008-12-03 20:46:35 +11:00
Makefile powerpc: Remove unncessary SPE related compiler flag 2008-12-03 08:19:10 -06:00