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authorTycho Andersen (AMD) <tycho@kernel.org>2026-01-05 10:22:18 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-02-26 15:00:47 -0800
commitbc2003659e061edaaaab9aaeb1de32efe460d793 (patch)
treeefa7d7bfd13c8c63684e33a121ebb1b1555a03b1 /drivers/crypto
parent0ef8838e897a50a5e0a36a4e4c25412d079194a3 (diff)
crypto: ccp - narrow scope of snp_range_list
[ Upstream commit dc8ccab15081efc4f2c5a9fc7b209cd641d29177 ] snp_range_list is only used in __sev_snp_init_locked() in the SNP_INIT_EX case, move the declaration there and add a __free() cleanup helper for it instead of waiting until shutdown. Fixes: 1ca5614b84ee ("crypto: ccp: Add support to initialize the AMD-SP for SEV-SNP") Reviewed-by: Alexey Kardashevskiy <aik@amd.com> Signed-off-by: Tycho Andersen (AMD) <tycho@kernel.org> Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/ccp/sev-dev.c13
1 files changed, 1 insertions, 12 deletions
diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c
index 6e6011e363e3..1cdadddb744e 100644
--- a/drivers/crypto/ccp/sev-dev.c
+++ b/drivers/crypto/ccp/sev-dev.c
@@ -127,13 +127,6 @@ static size_t sev_es_tmr_size = SEV_TMR_SIZE;
#define NV_LENGTH (32 * 1024)
static void *sev_init_ex_buffer;
-/*
- * SEV_DATA_RANGE_LIST:
- * Array containing range of pages that firmware transitions to HV-fixed
- * page state.
- */
-static struct sev_data_range_list *snp_range_list;
-
static void __sev_firmware_shutdown(struct sev_device *sev, bool panic);
static int snp_shutdown_on_panic(struct notifier_block *nb,
@@ -1361,6 +1354,7 @@ static int snp_filter_reserved_mem_regions(struct resource *rs, void *arg)
static int __sev_snp_init_locked(int *error, unsigned int max_snp_asid)
{
+ struct sev_data_range_list *snp_range_list __free(kfree) = NULL;
struct psp_device *psp = psp_master;
struct sev_data_snp_init_ex data;
struct sev_device *sev;
@@ -2780,11 +2774,6 @@ static void __sev_firmware_shutdown(struct sev_device *sev, bool panic)
sev_init_ex_buffer = NULL;
}
- if (snp_range_list) {
- kfree(snp_range_list);
- snp_range_list = NULL;
- }
-
__sev_snp_shutdown_locked(&error, panic);
}