[Skiboot] [PATCH V2 1/4] libflash/mbox-flash: Minor fixups before V2
Suraj Jitindar Singh
sjitindarsingh at gmail.com
Wed May 24 16:37:16 AEST 2017
From: Cyril Bur <cyril.bur at au1.ibm.com>
- Warn if flushing with closed write window.
- Call msg_free_memory() in mbox_flash_init() before a successful
return. No leak is present as the current allocation theme is from
static memory. However as this is likely to change in the future,
best to ensure that msg_free_memory() is called after every
allocation.
- Fix bug where len argument may be incorrect in mark dirty command.
Signed-off-by: Cyril Bur <cyril.bur at au1.ibm.com>
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh at gmail.com>
---
V1 -> V2:
- Fix bug where len argument may be incorrect in mark dirty command.
---
libflash/mbox-flash.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/libflash/mbox-flash.c b/libflash/mbox-flash.c
index 7bf731d..996e471 100644
--- a/libflash/mbox-flash.c
+++ b/libflash/mbox-flash.c
@@ -228,14 +228,18 @@ static int lpc_window_write(struct mbox_flash_data *mbox_flash, uint32_t pos,
static int mbox_flash_flush(struct mbox_flash_data *mbox_flash, uint64_t pos,
uint64_t len)
{
+ uint32_t start = ALIGN_DOWN(pos, 1 << mbox_flash->shift);
struct bmc_mbox_msg *msg;
int rc;
+ if (!mbox_flash->write.open)
+ prlog(PR_WARNING, "Attempting to flush without an open write window\n");
+
msg = msg_alloc(mbox_flash, MBOX_C_WRITE_FLUSH);
if (!msg)
return FLASH_ERR_MALLOC_FAILED;
msg_put_u16(msg, 0, pos >> mbox_flash->shift);
- msg_put_u32(msg, 2, len);
+ msg_put_u32(msg, 2, pos + len - start);
rc = msg_send(mbox_flash, msg);
if (rc) {
@@ -550,6 +554,8 @@ int mbox_flash_init(struct blocklevel_device **bl)
goto out_msg;
}
+ msg_free_memory(msg);
+
mbox_flash->bl.keep_alive = 0;
mbox_flash->bl.read = &mbox_flash_read;
mbox_flash->bl.write = &mbox_flash_write;
--
2.9.3
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