[PATCH] staging: gpib: Use min for calculating transfer length

Dave Penkler posted 1 patch 11 months ago
drivers/staging/gpib/agilent_82350b/agilent_82350b.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
[PATCH] staging: gpib: Use min for calculating transfer length
Posted by Dave Penkler 11 months ago
In the accel read and write functions the transfer length
was being calculated by an if statement setting it to
the lesser of the remaining bytes to read/write and the
fifo size.

Replace both instances with min() which is clearer and
more compact.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@inria.fr>
Closes: https://lore.kernel.org/r/202501182153.qHfL4Fbc-lkp@intel.com/
Signed-off-by: Dave Penkler <dpenkler@gmail.com>
---
 drivers/staging/gpib/agilent_82350b/agilent_82350b.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/gpib/agilent_82350b/agilent_82350b.c b/drivers/staging/gpib/agilent_82350b/agilent_82350b.c
index 3f4f95b7fe34..0ba592dc9849 100644
--- a/drivers/staging/gpib/agilent_82350b/agilent_82350b.c
+++ b/drivers/staging/gpib/agilent_82350b/agilent_82350b.c
@@ -66,10 +66,7 @@ int agilent_82350b_accel_read(gpib_board_t *board, uint8_t *buffer, size_t lengt
 		int j;
 		int count;
 
-		if (num_fifo_bytes - i < agilent_82350b_fifo_size)
-			block_size = num_fifo_bytes - i;
-		else
-			block_size = agilent_82350b_fifo_size;
+		block_size = min(num_fifo_bytes - i, agilent_82350b_fifo_size);
 		set_transfer_counter(a_priv, block_size);
 		writeb(ENABLE_TI_TO_SRAM | DIRECTION_GPIB_TO_HOST,
 		       a_priv->gpib_base + SRAM_ACCESS_CONTROL_REG);
@@ -200,10 +197,7 @@ int agilent_82350b_accel_write(gpib_board_t *board, uint8_t *buffer, size_t leng
 	for (i = 1; i < fifotransferlength;) {
 		clear_bit(WRITE_READY_BN, &tms_priv->state);
 
-		if (fifotransferlength - i < agilent_82350b_fifo_size)
-			block_size = fifotransferlength - i;
-		else
-			block_size = agilent_82350b_fifo_size;
+		block_size = min(fifotransferlength - i, agilent_82350b_fifo_size);
 		set_transfer_counter(a_priv, block_size);
 		for (j = 0; j < block_size; ++j, ++i) {
 			// load data into board's sram
-- 
2.47.1