powerpc/pseries: Remove VLA from lparcfg_write()

In lparcfg_write we hard code kbuf_sz and then use this as the variable
length of kbuf creating a variable length array. Since we're hard coding
the length anyway just define the array using this as the length and
remove the need for kbuf_sz, thus removing the variable length array.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/platforms/pseries/lparcfg.c b/arch/powerpc/platforms/pseries/lparcfg.c
index 7c872dc01bdb0aa4389302b89eec898b710c0462..8bd590af488a1a1c379476a77dae5eb3809c44e3 100644 (file)
--- a/arch/powerpc/platforms/pseries/lparcfg.c
+++ b/arch/powerpc/platforms/pseries/lparcfg.c
@@ -585,8 +585,7 @@ static ssize_t update_mpp(u64 *entitlement, u8 *weight)
 static ssize_t lparcfg_write(struct file *file, const char __user * buf,
                             size_t count, loff_t * off)
 {
-       int kbuf_sz = 64;
-       char kbuf[kbuf_sz];
+       char kbuf[64];
        char *tmp;
        u64 new_entitled, *new_entitled_ptr = &new_entitled;
        u8 new_weight, *new_weight_ptr = &new_weight;
@@ -595,7 +594,7 @@ static ssize_t lparcfg_write(struct file *file, const char __user * buf,
        if (!firmware_has_feature(FW_FEATURE_SPLPAR))
                return -EINVAL;
 
-       if (count > kbuf_sz)
+       if (count > sizeof(kbuf))
                return -EINVAL;
 
        if (copy_from_user(kbuf, buf, count))