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spi: aspeed: Replace VLA parameter with flat pointer in calibration helper

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aspeed_spi_ast2600_optimized_timing() declared its buffer argument as a
variable-length array parameter (u8 buf[rows][cols]), which causes a
sparse warning. Replace the VLA parameter with a plain u8 * and compute
the 2-D index manually. The corresponding call site is also updated.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202605180441.uD3toFRJ-lkp@intel.com/
Signed-off-by: Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Link: https://patch.msgid.link/20260522071621.102507-3-chin-ting_kuo@aspeedtech.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Chin-Ting Kuo 2026-05-22 15:16:21 +08:00 committed by Mark Brown
parent 5c3091e23f
commit 94f5efbaa7
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GPG Key ID: 24D68B725D5487D0
1 changed files with 3 additions and 4 deletions
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7
drivers/spi/spi-aspeed-smc.c
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@ -1467,8 +1467,7 @@ static int aspeed_spi_do_calibration(struct aspeed_spi_chip *chip)
* must contains the highest number of consecutive "pass"
* results and not span across multiple rows.
*/
static u32 aspeed_spi_ast2600_optimized_timing(u32 rows, u32 cols,
u8 buf[rows][cols])
static u32 aspeed_spi_ast2600_optimized_timing(u32 rows, u32 cols, u8 *buf)
{
int r = 0, c = 0;
int max = 0;
@ -1478,7 +1477,7 @@ static u32 aspeed_spi_ast2600_optimized_timing(u32 rows, u32 cols,
for (j = 0; j < cols;) {
int k = j;
while (k < cols && buf[i][k])
while (k < cols && buf[(i * cols) + k])
k++;
if (k - j > max) {
@ -1541,7 +1540,7 @@ static int aspeed_spi_ast2600_calibrate(struct aspeed_spi_chip *chip, u32 hdiv,
}
}
calib_point = aspeed_spi_ast2600_optimized_timing(6, 17, calib_res);
calib_point = aspeed_spi_ast2600_optimized_timing(6, 17, &calib_res[0][0]);
/* No good setting for this frequency */
if (calib_point == 0)
return -1;