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Thu, 16 Jul 2026 13:29:55 -0700 (PDT) From: Rosen Penev To: dmaengine@vger.kernel.org Cc: Vinod Koul , Frank Li , linux-kernel@vger.kernel.org (open list) Subject: [PATCHv2 2/4] dma: fsl_raid: set final bit via fill_cfd_frame() argument Date: Thu, 16 Jul 2026 13:29:47 -0700 Message-ID: <20260716202949.677290-3-rosenp@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260716202949.677290-1-rosenp@gmail.com> References: <20260716202949.677290-1-rosenp@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The final-frame bit is now passed as the "final" argument of fill_cfd_frame() (as fsl_re_prep_dma_memcpy already did) and set in CPU order before the single cpu_to_be32() store, replacing the previous read-modify-write of the __be32 efrl32 field. Assisted-by: opencode:hy3-free Signed-off-by: Rosen Penev --- drivers/dma/fsl_raid.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/dma/fsl_raid.c b/drivers/dma/fsl_raid.c index 2778d07a05e8..888f55b672a5 100644 --- a/drivers/dma/fsl_raid.c +++ b/drivers/dma/fsl_raid.c @@ -375,11 +375,11 @@ static struct dma_async_tx_descriptor *fsl_re_prep_dma_genq( for (i = 2, j = 0; j < save_src_cnt; i++, j++) fill_cfd_frame(cf, i, len, src[j], 0); + /* Fill the last frame and mark it final */ if (cont_q) - fill_cfd_frame(cf, i++, len, dest, 0); - - /* Setting the final bit in the last source buffer frame in CFD */ - cf[i - 1].efrl32 |= 1 << FSL_RE_CF_FINAL_SHIFT; + fill_cfd_frame(cf, i, len, dest, 1); + else + fill_cfd_frame(cf, i - 1, len, src[j - 1], 1); return &desc->async_tx; } @@ -505,16 +505,16 @@ static struct dma_async_tx_descriptor *fsl_re_prep_dma_pq( p[save_src_cnt + 2] = 1; fill_cfd_frame(cf, i++, len, dest[0], 0); fill_cfd_frame(cf, i++, len, dest[1], 0); - fill_cfd_frame(cf, i++, len, dest[1], 0); + fill_cfd_frame(cf, i++, len, dest[1], 1); } else { dev_err(re_chan->dev, "PQ tx continuation error!\n"); return NULL; } + } else { + /* Mark the last source buffer frame final */ + fill_cfd_frame(cf, i - 1, len, src[j - 1], 1); } - /* Setting the final bit in the last source buffer frame in CFD */ - cf[i - 1].efrl32 |= 1 << FSL_RE_CF_FINAL_SHIFT; - return &desc->async_tx; } -- 2.55.0