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SubjectRe: [Outreachy kernel] [PATCH] staging: qlge: Fix multiple assignments warning by splitting the assignement into two each
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On Wed, 2019-10-09 at 22:48 +0200, Julia Lawall wrote:
> On Wed, 9 Oct 2019, Jules Irenge wrote:
> > Fix multiple assignments warning " check
> > issued by checkpatch.pl tool:
> > "CHECK: multiple assignments should be avoided".
[]
> > diff --git a/drivers/staging/qlge/qlge_dbg.c b/drivers/staging/qlge/qlge_dbg.c
[]
> > @@ -141,8 +141,10 @@ static int ql_get_serdes_regs(struct ql_adapter *qdev,
> > u32 *direct_ptr, temp;
> > u32 *indirect_ptr;
> >
> > - xfi_direct_valid = xfi_indirect_valid = 0;
> > - xaui_direct_valid = xaui_indirect_valid = 1;
> > + xfi_indirect_valid = 0;
> > + xfi_direct_valid = xfi_indirect_valid;
> > + xaui_indirect_valid = 1;
> > + xaui_direct_valid = xaui_indirect_valid
>
> Despite checkpatch, I think that the original code was easier to
> understand.

It'd likely be easier to understand if all the
<foo>_valid uses were bool and the ql_get_both_serdes
<foo>_valid arguments were change to bool from
unsigned int as well.

btw: qlge likely is going to be deleted and not updated.

---
drivers/staging/qlge/qlge_dbg.c | 22 ++++++++++------------
1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/qlge/qlge_dbg.c b/drivers/staging/qlge/qlge_dbg.c
index 7e16066a3527..90ab37d4c49d 100644
--- a/drivers/staging/qlge/qlge_dbg.c
+++ b/drivers/staging/qlge/qlge_dbg.c
@@ -112,7 +112,7 @@ static int ql_read_serdes_reg(struct ql_adapter *qdev, u32 reg, u32 *data)

static void ql_get_both_serdes(struct ql_adapter *qdev, u32 addr,
u32 *direct_ptr, u32 *indirect_ptr,
- unsigned int direct_valid, unsigned int indirect_valid)
+ bool direct_valid, bool indirect_valid)
{
unsigned int status;

@@ -136,14 +136,12 @@ static int ql_get_serdes_regs(struct ql_adapter *qdev,
struct ql_mpi_coredump *mpi_coredump)
{
int status;
- unsigned int xfi_direct_valid, xfi_indirect_valid, xaui_direct_valid;
- unsigned int xaui_indirect_valid, i;
+ bool xfi_direct_valid = false, xfi_indirect_valid = false;
+ bool xaui_direct_valid = true, xaui_indirect_valid = true;
+ unsigned int i;
u32 *direct_ptr, temp;
u32 *indirect_ptr;

- xfi_direct_valid = xfi_indirect_valid = 0;
- xaui_direct_valid = xaui_indirect_valid = 1;
-
/* The XAUI needs to be read out per port */
status = ql_read_other_func_serdes_reg(qdev,
XG_SERDES_XAUI_HSS_PCS_START, &temp);
@@ -152,7 +150,7 @@ static int ql_get_serdes_regs(struct ql_adapter *qdev,

if ((temp & XG_SERDES_ADDR_XAUI_PWR_DOWN) ==
XG_SERDES_ADDR_XAUI_PWR_DOWN)
- xaui_indirect_valid = 0;
+ xaui_indirect_valid = false;

status = ql_read_serdes_reg(qdev, XG_SERDES_XAUI_HSS_PCS_START, &temp);

@@ -161,7 +159,7 @@ static int ql_get_serdes_regs(struct ql_adapter *qdev,

if ((temp & XG_SERDES_ADDR_XAUI_PWR_DOWN) ==
XG_SERDES_ADDR_XAUI_PWR_DOWN)
- xaui_direct_valid = 0;
+ xaui_direct_valid = false;

/*
* XFI register is shared so only need to read one
@@ -176,18 +174,18 @@ static int ql_get_serdes_regs(struct ql_adapter *qdev,
/* now see if i'm NIC 1 or NIC 2 */
if (qdev->func & 1)
/* I'm NIC 2, so the indirect (NIC1) xfi is up. */
- xfi_indirect_valid = 1;
+ xfi_indirect_valid = true;
else
- xfi_direct_valid = 1;
+ xfi_direct_valid = true;
}
if ((temp & XG_SERDES_ADDR_XFI2_PWR_UP) ==
XG_SERDES_ADDR_XFI2_PWR_UP) {
/* now see if i'm NIC 1 or NIC 2 */
if (qdev->func & 1)
/* I'm NIC 2, so the indirect (NIC1) xfi is up. */
- xfi_direct_valid = 1;
+ xfi_direct_valid = true;
else
- xfi_indirect_valid = 1;
+ xfi_indirect_valid = true;
}

/* Get XAUI_AN register block. */
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