diff options
| author | Sebastian Ene <sebastianene@google.com> | 2026-04-02 11:39:39 +0000 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@kernel.org> | 2026-04-07 10:47:42 +0100 |
| commit | 83210251fd70d5f96bcdc8911e15f7411a6b2463 (patch) | |
| tree | 3f959d17cb54b5bba3dfc354c1ace6737816f709 | |
| parent | 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f (diff) | |
firmware: arm_ffa: Use the correct buffer size during RXTX_MAP
Don't use the discovered buffer size from an FFA_FEATURES call directly
since we can run on a system that has the PAGE_SIZE larger than the
returned size which makes the alloc_pages_exact for the buffer to be
rounded up.
Fixes: 61824feae5c0 ("firmware: arm_ffa: Fetch the Rx/Tx buffer size using ffa_features()")
Signed-off-by: Sebastian Ene <sebastianene@google.com>
Link: https://patch.msgid.link/20260402113939.930221-1-sebastianene@google.com
Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
| -rw-r--r-- | drivers/firmware/arm_ffa/driver.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c index 12a625387d6e..83b8b47938b2 100644 --- a/drivers/firmware/arm_ffa/driver.c +++ b/drivers/firmware/arm_ffa/driver.c @@ -2078,7 +2078,7 @@ static int __init ffa_init(void) ret = ffa_rxtx_map(virt_to_phys(drv_info->tx_buffer), virt_to_phys(drv_info->rx_buffer), - rxtx_bufsz / FFA_PAGE_SIZE); + PAGE_ALIGN(rxtx_bufsz) / FFA_PAGE_SIZE); if (ret) { pr_err("failed to register FFA RxTx buffers\n"); goto free_pages; |