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Subject[PATCH v1 06/10] ipmi_si: Reuse si_to_str array in ipmi_hardcode_init_one()
Date
Instead of making the comparison one by one, reuse si_to_str array
in ipmi_hardcode_init_one() in conjunction with match_string() API.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/char/ipmi/ipmi_si.h | 3 +++
drivers/char/ipmi/ipmi_si_hardcode.c | 23 +++++++++--------------
drivers/char/ipmi/ipmi_si_intf.c | 2 --
3 files changed, 12 insertions(+), 16 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_si.h b/drivers/char/ipmi/ipmi_si.h
index bac0ff86e48e..fd3167d1e1e9 100644
--- a/drivers/char/ipmi/ipmi_si.h
+++ b/drivers/char/ipmi/ipmi_si.h
@@ -22,6 +22,9 @@ enum si_type {
SI_TYPE_INVALID, SI_KCS, SI_SMIC, SI_BT
};

+/* 'invalid' to allow a firmware-specified interface to be disabled */
+static __maybe_unused const char *const si_to_str[] = { "invalid", "kcs", "smic", "bt" };
+
enum ipmi_addr_space {
IPMI_IO_ADDR_SPACE, IPMI_MEM_ADDR_SPACE
};
diff --git a/drivers/char/ipmi/ipmi_si_hardcode.c b/drivers/char/ipmi/ipmi_si_hardcode.c
index f6ece7569504..cf3797523469 100644
--- a/drivers/char/ipmi/ipmi_si_hardcode.c
+++ b/drivers/char/ipmi/ipmi_si_hardcode.c
@@ -80,26 +80,21 @@ static void __init ipmi_hardcode_init_one(const char *si_type_str,
enum ipmi_addr_space addr_space)
{
struct ipmi_plat_data p;
+ int t;

memset(&p, 0, sizeof(p));

p.iftype = IPMI_PLAT_IF_SI;
- if (!si_type_str || !*si_type_str || strcmp(si_type_str, "kcs") == 0) {
+ if (!si_type_str || !*si_type_str) {
p.type = SI_KCS;
- } else if (strcmp(si_type_str, "smic") == 0) {
- p.type = SI_SMIC;
- } else if (strcmp(si_type_str, "bt") == 0) {
- p.type = SI_BT;
- } else if (strcmp(si_type_str, "invalid") == 0) {
- /*
- * Allow a firmware-specified interface to be
- * disabled.
- */
- p.type = SI_TYPE_INVALID;
} else {
- pr_warn("Interface type specified for interface %d, was invalid: %s\n",
- i, si_type_str);
- return;
+ t = match_string(si_to_str, ARRAY_SIZE(si_to_str), si_type_str);
+ if (t < 0) {
+ pr_warn("Interface type specified for interface %d, was invalid: %s\n",
+ i, si_type_str);
+ return;
+ }
+ p.type = t;
}

p.regsize = regsizes[i];
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index be41a473e3c2..ff448098f185 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -70,8 +70,6 @@ enum si_intf_state {
#define IPMI_BT_INTMASK_CLEAR_IRQ_BIT 2
#define IPMI_BT_INTMASK_ENABLE_IRQ_BIT 1

-static const char * const si_to_str[] = { "invalid", "kcs", "smic", "bt" };
-
static bool initialized;

/*
--
2.30.2
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