[PATCH v2 3/5] powerpc/rtas: remove ibm_suspend_me_token

[Nathan Lynch]

There's not a compelling reason to cache the value of the token for
the ibm,suspend-me function. Just look it up when needed in the RTAS
syscall's special case for it.

Reviewed-by: Alexey Kardashevskiy <aik at ozlabs.ru>
Reviewed-by: Andrew Donnellan <ajd at linux.ibm.com>
Signed-off-by: Nathan Lynch <nathanl at linux.ibm.com>
---
 arch/powerpc/kernel/rtas.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index d126d71ea5bd..60fcf7f7b0b8 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -828,7 +828,6 @@ void rtas_activate_firmware(void)
 		pr_err("ibm,activate-firmware failed (%i)\n", fwrc);
 }
 
-static int ibm_suspend_me_token = RTAS_UNKNOWN_SERVICE;
 #ifdef CONFIG_PPC_PSERIES
 /**
  * rtas_call_reentrant() - Used for reentrant rtas calls
@@ -1103,7 +1102,7 @@ SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs)
 		return -EINVAL;
 
 	/* Need to handle ibm,suspend_me call specially */
-	if (token == ibm_suspend_me_token) {
+	if (token == rtas_token("ibm,suspend-me")) {
 
 		/*
 		 * rtas_ibm_suspend_me assumes the streamid handle is in cpu
@@ -1191,10 +1190,8 @@ void __init rtas_initialize(void)
 	 * the stop-self token if any
 	 */
 #ifdef CONFIG_PPC64
-	if (firmware_has_feature(FW_FEATURE_LPAR)) {
+	if (firmware_has_feature(FW_FEATURE_LPAR))
 		rtas_region = min(ppc64_rma_size, RTAS_INSTANTIATE_MAX);
-		ibm_suspend_me_token = rtas_token("ibm,suspend-me");
-	}
 #endif
 	rtas_rmo_buf = memblock_phys_alloc_range(RTAS_RMOBUF_MAX, PAGE_SIZE,
 						 0, rtas_region);
-- 
2.30.2