diff mbox series

lmb: use a different bit position for LMB_NOMAP

Message ID 20250423113123.888700-1-sughosh.ganu@linaro.org
State Accepted
Commit 23e7088dde1a182bbc6b75bc642ee789f23429b2
Headers show
Series lmb: use a different bit position for LMB_NOMAP | expand

Commit Message

Sughosh Ganu April 23, 2025, 11:31 a.m. UTC
The LMB memory region attributes flags are used to specify the
behaviour of the memory regions with respect to allocations -- for
e.g. it is allowed to re-allocate a memory region already reserved
with the LMB_NONE flag. The flags use values with different bit
positions through the BIT() macro. Move the LMB_NOMAP value to bit
position 1, and also move the other flags accordingly. Using bit
position 0 for LMB_NOMAP results in the logic in
lmb_print_region_flags() to break, which prints an incorrect value for
the regions with LMB_NOMAP atribute.

Fixes: 3d56c06551d ("lmb: Move enum lmb_flags to a u32")
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
---
 include/lmb.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Tom Rini April 28, 2025, 9:34 p.m. UTC | #1
On Wed, 23 Apr 2025 17:01:23 +0530, Sughosh Ganu wrote:

> The LMB memory region attributes flags are used to specify the
> behaviour of the memory regions with respect to allocations -- for
> e.g. it is allowed to re-allocate a memory region already reserved
> with the LMB_NONE flag. The flags use values with different bit
> positions through the BIT() macro. Move the LMB_NOMAP value to bit
> position 1, and also move the other flags accordingly. Using bit
> position 0 for LMB_NOMAP results in the logic in
> lmb_print_region_flags() to break, which prints an incorrect value for
> the regions with LMB_NOMAP atribute.
> 
> [...]

Applied to u-boot/master, thanks!

[1/1] lmb: use a different bit position for LMB_NOMAP
      commit: 23e7088dde1a182bbc6b75bc642ee789f23429b2
diff mbox series

Patch

diff --git a/include/lmb.h b/include/lmb.h
index 0d316c64c0a..606a92cca48 100644
--- a/include/lmb.h
+++ b/include/lmb.h
@@ -27,9 +27,9 @@ 
  * %LMB_NONOTIFY: Do not notify other modules of changes to this memory region
  */
 #define LMB_NONE 0
-#define LMB_NOMAP BIT(0)
-#define LMB_NOOVERWRITE BIT(1)
-#define LMB_NONOTIFY BIT(2)
+#define LMB_NOMAP BIT(1)
+#define LMB_NOOVERWRITE BIT(2)
+#define LMB_NONOTIFY BIT(3)
 
 /**
  * enum lmb_map_op - memory map operation