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-rw-r--r--net/smc/smc_core.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index fafdb97adfad..3b95828d9976 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -2006,7 +2006,7 @@ out:
}
#define SMCD_DMBE_SIZES 6 /* 0 -> 16KB, 1 -> 32KB, .. 6 -> 1MB */
-#define SMCR_RMBE_SIZES 5 /* 0 -> 16KB, 1 -> 32KB, .. 5 -> 512KB */
+#define SMCR_RMBE_SIZES 15 /* 0 -> 16KB, 1 -> 32KB, .. 15 -> 512MB */
/* convert the RMB size into the compressed notation (minimum 16K, see
* SMCD/R_DMBE_SIZES.
@@ -2015,7 +2015,6 @@ out:
*/
static u8 smc_compress_bufsize(int size, bool is_smcd, bool is_rmb)
{
- const unsigned int max_scat = SG_MAX_SINGLE_ALLOC * PAGE_SIZE;
u8 compressed;
if (size <= SMC_BUF_MIN_SIZE)
@@ -2025,9 +2024,11 @@ static u8 smc_compress_bufsize(int size, bool is_smcd, bool is_rmb)
compressed = min_t(u8, ilog2(size) + 1,
is_smcd ? SMCD_DMBE_SIZES : SMCR_RMBE_SIZES);
+#ifdef CONFIG_ARCH_NO_SG_CHAIN
if (!is_smcd && is_rmb)
/* RMBs are backed by & limited to max size of scatterlists */
- compressed = min_t(u8, compressed, ilog2(max_scat >> 14));
+ compressed = min_t(u8, compressed, ilog2((SG_MAX_SINGLE_ALLOC * PAGE_SIZE) >> 14));
+#endif
return compressed;
}