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| author |   Stefan Wahren <stefan.wahren@i2se.com> | 2021-06-03 17:49:53 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-04 15:10:02 +0200 |
| commit | e63becb7f30830ed142f889bb0894d76df56d3b4 (patch) | |
| tree | a277a9da800eca8150905708ef52af69e02a597b /drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h | |
| parent | staging: vchiq_core: move internals to C source (diff) | |
| download | linux-dev-e63becb7f30830ed142f889bb0894d76df56d3b4.tar.xz linux-dev-e63becb7f30830ed142f889bb0894d76df56d3b4.zip | |
staging: vchiq_core: get the rid of IS_POW2
The macro IS_POW2 is only used to ensure some size are powers of 2.
Better use BUILD_BUG_ON_NOT_POWER_OF_2 for this. Since this must be done
in a function, merge all these checks in a new function.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1622735405-9980-5-git-send-email-stefan.wahren@i2se.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h')
| -rw-r--r-- | drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h index db93495da04c..df5141856449 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h @@ -69,13 +69,6 @@ extern int vchiq_static_assert[(cond) ? 1 : -1] #endif -#define IS_POW2(x) (x && ((x & (x - 1)) == 0)) - -/* Ensure that the slot size and maximum number of slots are powers of 2 */ -vchiq_static_assert(IS_POW2(VCHIQ_SLOT_SIZE)); -vchiq_static_assert(IS_POW2(VCHIQ_MAX_SLOTS)); -vchiq_static_assert(IS_POW2(VCHIQ_MAX_SLOTS_PER_SIDE)); - #define VCHIQ_SLOT_MASK (VCHIQ_SLOT_SIZE - 1) #define VCHIQ_SLOT_QUEUE_MASK (VCHIQ_MAX_SLOTS_PER_SIDE - 1) #define VCHIQ_SLOT_ZERO_SLOTS DIV_ROUND_UP(sizeof(struct vchiq_slot_zero), \ |