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Use DECLARE_FLEX_ARRAY() helper in drivers/dma/sh/rcar-dmac.c #217

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GustavoARSilva opened this issue Sep 26, 2022 · 0 comments
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Use DECLARE_FLEX_ARRAY() helper in drivers/dma/sh/rcar-dmac.c #217

GustavoARSilva opened this issue Sep 26, 2022 · 0 comments
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@GustavoARSilva
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[Idiom] fake flexible array [PATCH] Accepted A submitted patch has been accepted upstream [PATCH] Exists A patch exists to address the issue [Refactor] 0-element array Conversion away from zero-length array

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diff -u -p ./drivers/dma/sh/rcar-dmac.c /tmp/nothing/drivers/dma/sh/rcar-dmac.c
--- ./drivers/dma/sh/rcar-dmac.c
+++ /tmp/nothing/drivers/dma/sh/rcar-dmac.c
@@ -104,7 +104,6 @@ struct rcar_dmac_desc_page {

        union {
                struct rcar_dmac_desc descs[0];
-               struct rcar_dmac_xfer_chunk chunks[0];
        };
 };
@GustavoARSilva GustavoARSilva self-assigned this Sep 26, 2022
@GustavoARSilva GustavoARSilva added the [PATCH] Exists A patch exists to address the issue label Sep 26, 2022
@GustavoARSilva GustavoARSilva mentioned this issue Sep 26, 2022
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intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this issue Sep 27, 2022
@GustavoARSilva @intel-lab-lkp
dmaengine: sh: rcar-dmac: Replace zero-length arrays with DECLARE_FLE…
2b2bab2 
…X_ARRAY() helper

Zero-length arrays are deprecated and we are moving towards adopting
C99 flexible-array members, instead. So, replace zero-length arrays
declarations in anonymous union with the new DECLARE_FLEX_ARRAY()
helper macro.

This helper allows for flexible-array members in unions.

Link: KSPP#193
Link: KSPP#217
Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this issue Sep 30, 2022
@GustavoARSilva @vinodkoul
dmaengine: sh: rcar-dmac: Replace zero-length arrays with DECLARE_FLE…
45ecf27 
…X_ARRAY() helper

Zero-length arrays are deprecated and we are moving towards adopting
C99 flexible-array members, instead. So, replace zero-length arrays
declarations in anonymous union with the new DECLARE_FLEX_ARRAY()
helper macro.

This helper allows for flexible-array members in unions.

Link: KSPP#193
Link: KSPP#217
Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/YzIdsJqsR3LH2qEK@work
Signed-off-by: Vinod Koul <vkoul@kernel.org>
@GustavoARSilva GustavoARSilva added the [PATCH] Accepted A submitted patch has been accepted upstream label Feb 2, 2023
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[Idiom] fake flexible array [PATCH] Accepted A submitted patch has been accepted upstream [PATCH] Exists A patch exists to address the issue [Refactor] 0-element array Conversion away from zero-length array
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