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From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Richard Henderson" <richard.henderson@linaro.org>,
	qemu-block@nongnu.org,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Bin Meng" <bmeng.cn@gmail.com>
Subject: [PATCH-for-9.1? v2 1/4] hw/sd/sdhci: Reduce variables scope in sdhci_do_adma()
Date: Wed, 31 Jul 2024 23:24:58 +0200	[thread overview]
Message-ID: <20240731212501.44385-2-philmd@linaro.org> (raw)
In-Reply-To: <20240731212501.44385-1-philmd@linaro.org>

All variables are only used within the for loop.
Declare them within it. In particular this resets
'dscr' on each iteration.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/sd/sdhci.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c
index 66b9364e9e..773f2b284b 100644
--- a/hw/sd/sdhci.c
+++ b/hw/sd/sdhci.c
@@ -751,20 +751,19 @@ static void get_adma_description(SDHCIState *s, ADMADescr *dscr)
 
 static void sdhci_do_adma(SDHCIState *s)
 {
-    unsigned int begin, length;
-    const uint16_t block_size = s->blksize & BLOCK_SIZE_MASK;
-    const MemTxAttrs attrs = { .memory = true };
-    ADMADescr dscr = {};
-    MemTxResult res;
-    int i;
-
     if (s->trnmod & SDHC_TRNS_BLK_CNT_EN && !s->blkcnt) {
         /* Stop Multiple Transfer */
         sdhci_end_transfer(s);
         return;
     }
 
-    for (i = 0; i < SDHC_ADMA_DESCS_PER_DELAY; ++i) {
+    for (int i = 0; i < SDHC_ADMA_DESCS_PER_DELAY; ++i) {
+        unsigned int begin, length;
+        const uint16_t block_size = s->blksize & BLOCK_SIZE_MASK;
+        const MemTxAttrs attrs = { .memory = true };
+        ADMADescr dscr = { };
+        MemTxResult res;
+
         s->admaerr &= ~SDHC_ADMAERR_LENGTH_MISMATCH;
 
         get_adma_description(s, &dscr);
-- 
2.45.2



  reply	other threads:[~2024-07-31 21:26 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-31 21:24 [PATCH-for-9.1? v2 0/4] hw/sd/sdhci: Check ADMA descriptors can be accessed Philippe Mathieu-Daudé
2024-07-31 21:24 ` Philippe Mathieu-Daudé [this message]
2024-07-31 21:24 ` [PATCH-for-9.1? v2 2/4] hw/sd/sdhci: Reduce variables scope in get_adma_description() Philippe Mathieu-Daudé
2024-07-31 21:25 ` [PATCH-for-9.1? v2 3/4] hw/sd/sdhci: Read ADMA2_64 descriptor with a single dma_memory_read() Philippe Mathieu-Daudé
2024-07-31 21:25 ` [PATCH-for-9.1? v2 4/4] hw/sd/sdhci: Check ADMA descriptors can be accessed Philippe Mathieu-Daudé
2024-12-20 21:11   ` Michael Tokarev
2024-08-05 18:14 ` [PATCH-for-9.1? v2 0/4] " Philippe Mathieu-Daudé
2025-01-09 12:59 ` Philippe Mathieu-Daudé

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